57729120 has 96 divisors (see below), whose sum is σ = 183472128. Its totient is φ = 15257088.

The previous prime is 57729109. The next prime is 57729167. The reversal of 57729120 is 2192775.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60487 + ... + 61433.

It is an arithmetic number, because the mean of its divisors is an integer number (1911168).

Almost surely, 2^57729120 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 57729120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91736064).

57729120 is an abundant number, since it is smaller than the sum of its proper divisors (125743008).

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

57729120 is a wasteful number, since it uses less digits than its factorization.

57729120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092 (or 1084 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 57729120 is about 7597.9681494463. The cubic root of 57729120 is about 386.4841125308.

The spelling of 57729120 in words is "fifty-seven million, seven hundred twenty-nine thousand, one hundred twenty".