57641280 has 112 divisors (see below), whose sum is σ = 185196480. Its totient is φ = 15187968.

The previous prime is 57641267. The next prime is 57641281. The reversal of 57641280 is 8214675.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57641281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92811 + ... + 93429.

It is an arithmetic number, because the mean of its divisors is an integer number (1653540).

Almost surely, 2^57641280 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 57641280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92598240).

57641280 is an abundant number, since it is smaller than the sum of its proper divisors (127555200).

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

57641280 is a wasteful number, since it uses less digits than its factorization.

57641280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736 (or 726 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 57641280 is about 7592.1854561121. The cubic root of 57641280 is about 386.2879896862.

The spelling of 57641280 in words is "fifty-seven million, six hundred forty-one thousand, two hundred eighty".