2049943896 has 512 divisors, whose sum is σ = 8064000000. Its totient is φ = 464693760.

The previous prime is 2049943891. The next prime is 2049943897. The reversal of 2049943896 is 6983499402.

2049943896 is a `hidden beast` number, since 20 + 499 + 43 + 8 + 96 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2049943891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4107855 + ... + 4108353.

It is an arithmetic number, because the mean of its divisors is an integer number (15750000).

Almost surely, 2^2049943896 is an apocalyptic number.

2049943896 is a gapful number since it is divisible by the number (26) 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 2049943896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4032000000).

2049943896 is an abundant number, since it is smaller than the sum of its proper divisors (6014056104).

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

2049943896 is a wasteful number, since it uses less digits than its factorization.

2049943896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564 (or 554 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The square root of 2049943896 is about 45276.3061214141. The cubic root of 2049943896 is about 1270.3225039149.

The spelling of 2049943896 in words is "two billion, forty-nine million, nine hundred forty-three thousand, eight hundred ninety-six".