57004398 has 48 divisors (see below), whose sum is σ = 139741056. Its totient is φ = 17272440.

The previous prime is 57004397. The next prime is 57004403. The reversal of 57004398 is 89340075.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57004397) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15 + ... + 10677.

It is an arithmetic number, because the mean of its divisors is an integer number (2911272).

Almost surely, 2^57004398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57004398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69870528).

57004398 is an abundant number, since it is smaller than the sum of its proper divisors (82736658).

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

57004398 is a wasteful number, since it uses less digits than its factorization.

57004398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10691 (or 10679 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 57004398 is about 7550.1256943179. The cubic root of 57004398 is about 384.8600109480.

The spelling of 57004398 in words is "fifty-seven million, four thousand, three hundred ninety-eight".