72274056 has 64 divisors (see below), whose sum is σ = 188179200. Its totient is φ = 23112768.

The previous prime is 72274001. The next prime is 72274063. The reversal of 72274056 is 65047227.

It is a super-2 number, since 2×72274056² = 10447078341382272, which contains 22 as substring.

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, 60295 + ... + 61481.

It is an arithmetic number, because the mean of its divisors is an integer number (2940300).

Almost surely, 2^72274056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72274056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94089600).

72274056 is an abundant number, since it is smaller than the sum of its proper divisors (115905144).

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

72274056 is a wasteful number, since it uses less digits than its factorization.

72274056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298 (or 1294 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 72274056 is about 8501.4149410554. The cubic root of 72274056 is about 416.5439291465.

The spelling of 72274056 in words is "seventy-two million, two hundred seventy-four thousand, fifty-six".