71942538 has 32 divisors (see below), whose sum is σ = 152832960. Its totient is φ = 22498560.

The previous prime is 71942509. The next prime is 71942543. The reversal of 71942538 is 83524917.

It is a junction number, because it is equal to n+sod(n) for n = 71942496 and 71942505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37728 + ... + 39588.

It is an arithmetic number, because the mean of its divisors is an integer number (4776030).

Almost surely, 2^71942538 is an apocalyptic number.

71942538 is an abundant number, since it is smaller than the sum of its proper divisors (80890422).

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

71942538 is a wasteful number, since it uses less digits than its factorization.

71942538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2262.

The product of its digits is 60480, while the sum is 39.

The square root of 71942538 is about 8481.8947175734. The cubic root of 71942538 is about 415.9060631401.

The spelling of 71942538 in words is "seventy-one million, nine hundred forty-two thousand, five hundred thirty-eight".