718428057 has 8 divisors (see below), whose sum is σ = 1008320160. Its totient is φ = 453744000.

The previous prime is 718428043. The next prime is 718428059. The reversal of 718428057 is 750824817.

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

It is not a de Polignac number, because 718428057 - 2⁶ = 718427993 is a prime.

It is a super-2 number, since 2×718428057² = 1032277746169590498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (718428059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6301944 + ... + 6302057.

It is an arithmetic number, because the mean of its divisors is an integer number (126040020).

Almost surely, 2^718428057 is an apocalyptic number.

It is an amenable number.

718428057 is a deficient number, since it is larger than the sum of its proper divisors (289892103).

718428057 is a wasteful number, since it uses less digits than its factorization.

718428057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12604023.

The product of its (nonzero) digits is 125440, while the sum is 42.

The square root of 718428057 is about 26803.5082964898. The cubic root of 718428057 is about 895.6282043390.

The spelling of 718428057 in words is "seven hundred eighteen million, four hundred twenty-eight thousand, fifty-seven".