2257921044 has 36 divisors (see below), whose sum is σ = 5776295616. Its totient is φ = 743571408.

The previous prime is 2257921033. The next prime is 2257921049. The reversal of 2257921044 is 4401297522.

2257921044 is a `hidden beast` number, since 22 + 579 + 21 + 0 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257921049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 374844 + ... + 380819.

It is an arithmetic number, because the mean of its divisors is an integer number (160452656).

Almost surely, 2^2257921044 is an apocalyptic number.

It is an amenable number.

2257921044 is an abundant number, since it is smaller than the sum of its proper divisors (3518374572).

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

2257921044 is a wasteful number, since it uses less digits than its factorization.

2257921044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755756 (or 755751 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 2257921044 is about 47517.5866811436. The cubic root of 2257921044 is about 1311.9066004365.

The spelling of 2257921044 in words is "two billion, two hundred fifty-seven million, nine hundred twenty-one thousand, forty-four".