57801438 has 48 divisors (see below), whose sum is σ = 135547776. Its totient is φ = 18425880.

The previous prime is 57801389. The next prime is 57801487. The reversal of 57801438 is 83410875.

It is an interprime number because it is at equal distance from previous prime (57801389) and next prime (57801487).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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, 8593 + ... + 13763.

It is an arithmetic number, because the mean of its divisors is an integer number (2823912).

Almost surely, 2^57801438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57801438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67773888).

57801438 is an abundant number, since it is smaller than the sum of its proper divisors (77746338).

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

57801438 is a wasteful number, since it uses less digits than its factorization.

57801438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5211 (or 5199 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 57801438 is about 7602.7256954332. The cubic root of 57801438 is about 386.6454297030.

The spelling of 57801438 in words is "fifty-seven million, eight hundred one thousand, four hundred thirty-eight".