57632730 has 64 divisors (see below), whose sum is σ = 143296128. Its totient is φ = 14826240.

The previous prime is 57632713. The next prime is 57632741. The reversal of 57632730 is 3723675.

It is a junction number, because it is equal to n+sod(n) for n = 57632691 and 57632700.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106260 + ... + 106800.

It is an arithmetic number, because the mean of its divisors is an integer number (2239002).

Almost surely, 2^57632730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57632730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71648064).

57632730 is an abundant number, since it is smaller than the sum of its proper divisors (85663398).

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

57632730 is a wasteful number, since it uses less digits than its factorization.

57632730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671.

The product of its (nonzero) digits is 26460, while the sum is 33.

The square root of 57632730 is about 7591.6223562556. The cubic root of 57632730 is about 386.2688892219.

The spelling of 57632730 in words is "fifty-seven million, six hundred thirty-two thousand, seven hundred thirty".