71432572 has 24 divisors (see below), whose sum is σ = 138118176. Its totient is φ = 32153088.

The previous prime is 71432567. The next prime is 71432579. The reversal of 71432572 is 27523417.

It is a super-2 number, since 2×71432572² = 10205224685070368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71432579) 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, 21273 + ... + 24400.

It is an arithmetic number, because the mean of its divisors is an integer number (5754924).

Almost surely, 2^71432572 is an apocalyptic number.

It is an amenable number.

71432572 is a deficient number, since it is larger than the sum of its proper divisors (66685604).

71432572 is a wasteful number, since it uses less digits than its factorization.

71432572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45717 (or 45715 counting only the distinct ones).

The product of its digits is 11760, while the sum is 31.

The square root of 71432572 is about 8451.7792209688. The cubic root of 71432572 is about 414.9210126926.

Adding to 71432572 its reverse (27523417), we get a palindrome (98955989).

The spelling of 71432572 in words is "seventy-one million, four hundred thirty-two thousand, five hundred seventy-two".