71418668 has 12 divisors (see below), whose sum is σ = 129014592. Its totient is φ = 34557360.

The previous prime is 71418643. The next prime is 71418671. The reversal of 71418668 is 86681417.

It is a super-2 number, since 2×71418668² = 10201252277788448, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287855 + ... + 288102.

It is an arithmetic number, because the mean of its divisors is an integer number (10751216).

Almost surely, 2^71418668 is an apocalyptic number.

It is an amenable number.

71418668 is a deficient number, since it is larger than the sum of its proper divisors (57595924).

71418668 is a wasteful number, since it uses less digits than its factorization.

71418668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575992 (or 575990 counting only the distinct ones).

The product of its digits is 64512, while the sum is 41.

The square root of 71418668 is about 8450.9566322399. The cubic root of 71418668 is about 414.8940901653.

The spelling of 71418668 in words is "seventy-one million, four hundred eighteen thousand, six hundred sixty-eight".