57281234 has 8 divisors (see below), whose sum is σ = 87543180. Its totient is φ = 28100176.

The previous prime is 57281233. The next prime is 57281243. The reversal of 57281234 is 43218275.

It can be written as a sum of positive squares in 2 ways, for example, as 55726225 + 1555009 = 7465^2 + 1247^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×57281234² = 6562279537125512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57281234.

It is not an unprimeable number, because it can be changed into a prime (57281233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270089 + ... + 270300.

Almost surely, 2^57281234 is an apocalyptic number.

57281234 is a deficient number, since it is larger than the sum of its proper divisors (30261946).

57281234 is a wasteful number, since it uses less digits than its factorization.

57281234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540444.

The product of its digits is 13440, while the sum is 32.

The square root of 57281234 is about 7568.4366945889. The cubic root of 57281234 is about 385.4820161597.

The spelling of 57281234 in words is "fifty-seven million, two hundred eighty-one thousand, two hundred thirty-four".