57049308 has 18 divisors (see below), whose sum is σ = 144208064. Its totient is φ = 19016424.

The previous prime is 57049277. The next prime is 57049313. The reversal of 57049308 is 80394075.

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

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1584703 = 57049308 / (5 + 7 + 0 + 4 + 9 + 3 + 0 + 8).

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, 792316 + ... + 792387.

Almost surely, 2^57049308 is an apocalyptic number.

It is an amenable number.

57049308 is an abundant number, since it is smaller than the sum of its proper divisors (87158756).

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

57049308 is a wasteful number, since it uses less digits than its factorization.

57049308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584713 (or 1584708 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 57049308 is about 7553.0992314414. The cubic root of 57049308 is about 384.9610530119.

The spelling of 57049308 in words is "fifty-seven million, forty-nine thousand, three hundred eight".