57217434 has 16 divisors (see below), whose sum is σ = 117096672. Its totient is φ = 18628848.

The previous prime is 57217423. The next prime is 57217441. The reversal of 57217434 is 43471275.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 57217395 and 57217404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110629 + ... + 111144.

It is an arithmetic number, because the mean of its divisors is an integer number (7318542).

Almost surely, 2^57217434 is an apocalyptic number.

57217434 is an abundant number, since it is smaller than the sum of its proper divisors (59879238).

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

57217434 is a wasteful number, since it uses less digits than its factorization.

57217434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221821.

The product of its digits is 23520, while the sum is 33.

The square root of 57217434 is about 7564.2206472313. The cubic root of 57217434 is about 385.3388460064.

The spelling of 57217434 in words is "fifty-seven million, two hundred seventeen thousand, four hundred thirty-four".