57081430 has 32 divisors (see below), whose sum is σ = 120294720. Its totient is φ = 19092480.

The previous prime is 57081419. The next prime is 57081433. The reversal of 57081430 is 3418075.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57081433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7075 + ... + 12814.

It is an arithmetic number, because the mean of its divisors is an integer number (3759210).

Almost surely, 2^57081430 is an apocalyptic number.

57081430 is an abundant number, since it is smaller than the sum of its proper divisors (63213290).

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

57081430 is a wasteful number, since it uses less digits than its factorization.

57081430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19944.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 57081430 is about 7555.2253440913. The cubic root of 57081430 is about 385.0332911000.

The spelling of 57081430 in words is "fifty-seven million, eighty-one thousand, four hundred thirty".