2093645988 has 96 divisors (see below), whose sum is σ = 6214360320. Its totient is φ = 597127680.

The previous prime is 2093645987. The next prime is 2093645989. The reversal of 2093645988 is 8895463902.

2093645988 is a `hidden beast` number, since 20 + 93 + 6 + 459 + 88 = 666.

It is an interprime number because it is at equal distance from previous prime (2093645987) and next prime (2093645989).

It is a super-2 number, since 2×2093645988² = 8766707046136992288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2093645987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 491548 + ... + 495788.

It is an arithmetic number, because the mean of its divisors is an integer number (64732920).

Almost surely, 2^2093645988 is an apocalyptic number.

2093645988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2093645988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3107180160).

2093645988 is an abundant number, since it is smaller than the sum of its proper divisors (4120714332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2093645988 is a wasteful number, since it uses less digits than its factorization.

2093645988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4914 (or 4906 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The square root of 2093645988 is about 45756.3764736676. The cubic root of 2093645988 is about 1279.2863021654.

The spelling of 2093645988 in words is "two billion, ninety-three million, six hundred forty-five thousand, nine hundred eighty-eight".