57968640 has 288 divisors, whose sum is σ = 218476440. Its totient is φ = 14155776.

The previous prime is 57968609. The next prime is 57968653. The reversal of 57968640 is 4686975.

It can be written as a sum of positive squares in 4 ways, for example, as 57517056 + 451584 = 7584^2 + 672^2 .

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1566702 + ... + 1566738.

Almost surely, 2^57968640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57968640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109238220).

57968640 is an abundant number, since it is smaller than the sum of its proper divisors (160507800).

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

57968640 is a wasteful number, since it uses less digits than its factorization.

57968640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 57968640 is about 7613.7139426170. The cubic root of 57968640 is about 387.0178867201.

The spelling of 57968640 in words is "fifty-seven million, nine hundred sixty-eight thousand, six hundred forty".