57107430 has 96 divisors (see below), whose sum is σ = 156619008. Its totient is φ = 14968800.

The previous prime is 57107429. The next prime is 57107431. The reversal of 57107430 is 3470175.

It is an interprime number because it is at equal distance from previous prime (57107429) and next prime (57107431).

It is a super-2 number, since 2×57107430² = 6522517122409800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 57107394 and 57107403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57107431) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 172365 + ... + 172695.

It is an arithmetic number, because the mean of its divisors is an integer number (1631448).

Almost surely, 2^57107430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57107430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78309504).

57107430 is an abundant number, since it is smaller than the sum of its proper divisors (99511578).

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

57107430 is a wasteful number, since it uses less digits than its factorization.

57107430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 57107430 is about 7556.9458116358. The cubic root of 57107430 is about 385.0917417847.

The spelling of 57107430 in words is "fifty-seven million, one hundred seven thousand, four hundred thirty".