2149993692 has 120 divisors (see below), whose sum is σ = 7007468160. Its totient is φ = 558433440.

The previous prime is 2149993691. The next prime is 2149993721. The reversal of 2149993692 is 2963999412.

2149993692 is a `hidden beast` number, since 2 + 1 + 499 + 93 + 69 + 2 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149993691) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18142 + ... + 68037.

It is an arithmetic number, because the mean of its divisors is an integer number (58395568).

Almost surely, 2^2149993692 is an apocalyptic number.

2149993692 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2149993692 is an abundant number, since it is smaller than the sum of its proper divisors (4857474468).

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

2149993692 is a wasteful number, since it uses less digits than its factorization.

2149993692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86213 (or 86202 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 54.

The square root of 2149993692 is about 46368.0244565153. The cubic root of 2149993692 is about 1290.6616184245.

The spelling of 2149993692 in words is "two billion, one hundred forty-nine million, nine hundred ninety-three thousand, six hundred ninety-two".