71490392 has 16 divisors (see below), whose sum is σ = 134136600. Its totient is φ = 35720640.

The previous prime is 71490383. The next prime is 71490403. The reversal of 71490392 is 29309417.

It is a super-2 number, since 2×71490392² = 10221752296627328, which contains 22 as substring.

It is a congruent number.

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, 17084 + ... + 20852.

Almost surely, 2^71490392 is an apocalyptic number.

It is an amenable number.

71490392 is a deficient number, since it is larger than the sum of its proper divisors (62646208).

71490392 is a wasteful number, since it uses less digits than its factorization.

71490392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6146 (or 6142 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 71490392 is about 8455.1991106064. The cubic root of 71490392 is about 415.0329329843.

The spelling of 71490392 in words is "seventy-one million, four hundred ninety thousand, three hundred ninety-two".