71423944 has 16 divisors (see below), whose sum is σ = 134028720. Its totient is φ = 35682960.

The previous prime is 71423921. The next prime is 71423981. The reversal of 71423944 is 44932417.

It is a happy 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, 9727 + ... + 15409.

It is an arithmetic number, because the mean of its divisors is an integer number (8376795).

Almost surely, 2^71423944 is an apocalyptic number.

It is an amenable number.

71423944 is a deficient number, since it is larger than the sum of its proper divisors (62604776).

71423944 is a wasteful number, since it uses less digits than its factorization.

71423944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7260 (or 7256 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 71423944 is about 8451.2687804850. The cubic root of 71423944 is about 414.9043065759.

The spelling of 71423944 in words is "seventy-one million, four hundred twenty-three thousand, nine hundred forty-four".