57784044 has 12 divisors (see below), whose sum is σ = 134829464. Its totient is φ = 19261344.

The previous prime is 57784043. The next prime is 57784057. The reversal of 57784044 is 44048775.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 57783993 and 57784011.

It is not an unprimeable number, because it can be changed into a prime (57784043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2407657 + ... + 2407680.

Almost surely, 2^57784044 is an apocalyptic number.

It is an amenable number.

57784044 is an abundant number, since it is smaller than the sum of its proper divisors (77045420).

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

57784044 is a wasteful number, since it uses less digits than its factorization.

57784044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4815344 (or 4815342 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 39.

The square root of 57784044 is about 7601.5816775195. The cubic root of 57784044 is about 386.6066418252.

The spelling of 57784044 in words is "fifty-seven million, seven hundred eighty-four thousand, forty-four".