57445884 has 18 divisors (see below), whose sum is σ = 145210520. Its totient is φ = 19148616.

The previous prime is 57445859. The next prime is 57445903. The reversal of 57445884 is 48854475.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 797824 + ... + 797895.

Almost surely, 2^57445884 is an apocalyptic number.

It is an amenable number.

57445884 is an abundant number, since it is smaller than the sum of its proper divisors (87764636).

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

57445884 is a wasteful number, since it uses less digits than its factorization.

57445884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595729 (or 1595724 counting only the distinct ones).

The product of its digits is 716800, while the sum is 45.

The square root of 57445884 is about 7579.3063007112. The cubic root of 57445884 is about 385.8510078509.

It can be divided in two parts, 5744 and 5884, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 57445884 in words is "fifty-seven million, four hundred forty-five thousand, eight hundred eighty-four".