71234272 has 24 divisors (see below), whose sum is σ = 140436072. Its totient is φ = 35568000.

The previous prime is 71234231. The next prime is 71234291. The reversal of 71234272 is 27243217.

It is a self number, because there is not a number n which added to its sum of digits gives 71234272.

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, 36522 + ... + 38422.

It is an arithmetic number, because the mean of its divisors is an integer number (5851503).

Almost surely, 2^71234272 is an apocalyptic number.

It is an amenable number.

71234272 is a deficient number, since it is larger than the sum of its proper divisors (69201800).

71234272 is a wasteful number, since it uses less digits than its factorization.

71234272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082 (or 3074 counting only the distinct ones).

The product of its digits is 4704, while the sum is 28.

The square root of 71234272 is about 8440.0398103327. The cubic root of 71234272 is about 414.5367104585.

Adding to 71234272 its reverse (27243217), we get a palindrome (98477489).

The spelling of 71234272 in words is "seventy-one million, two hundred thirty-four thousand, two hundred seventy-two".