72277536 has 24 divisors (see below), whose sum is σ = 189728784. Its totient is φ = 24092480.

The previous prime is 72277529. The next prime is 72277553. The reversal of 72277536 is 63577227.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 72277494 and 72277503.

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, 376350 + ... + 376541.

It is an arithmetic number, because the mean of its divisors is an integer number (7905366).

Almost surely, 2^72277536 is an apocalyptic number.

It is an amenable number.

72277536 is an abundant number, since it is smaller than the sum of its proper divisors (117451248).

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

72277536 is a wasteful number, since it uses less digits than its factorization.

72277536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752904 (or 752896 counting only the distinct ones).

The product of its digits is 123480, while the sum is 39.

The square root of 72277536 is about 8501.6196104037. The cubic root of 72277536 is about 416.5506145774.

The spelling of 72277536 in words is "seventy-two million, two hundred seventy-seven thousand, five hundred thirty-six".