71092272 has 30 divisors (see below), whose sum is σ = 183806068. Its totient is φ = 23677952.

The previous prime is 71092213. The next prime is 71092277. The reversal of 71092272 is 27229017.

It is a happy number.

It is a super-2 number, since 2×71092272² = 10108222276243968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71092277) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57808 + ... + 59024.

Almost surely, 2^71092272 is an apocalyptic number.

It is an amenable number.

71092272 is an abundant number, since it is smaller than the sum of its proper divisors (112713796).

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

71092272 is an equidigital number, since it uses as much as digits as its factorization.

71092272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445 (or 1222 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 71092272 is about 8431.6233312453. The cubic root of 71092272 is about 414.2610782927.

The spelling of 71092272 in words is "seventy-one million, ninety-two thousand, two hundred seventy-two".