72303536 has 20 divisors (see below), whose sum is σ = 146179632. Its totient is φ = 34579776.

The previous prime is 72303529. The next prime is 72303547. The reversal of 72303536 is 63530327.

It is a junction number, because it is equal to n+sod(n) for n = 72303499 and 72303508.

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, 97871 + ... + 98606.

Almost surely, 2^72303536 is an apocalyptic number.

It is an amenable number.

72303536 is an abundant number, since it is smaller than the sum of its proper divisors (73876096).

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

72303536 is a wasteful number, since it uses less digits than its factorization.

72303536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196508 (or 196502 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 29.

The square root of 72303536 is about 8503.1485933153. The cubic root of 72303536 is about 416.6005564090.

The spelling of 72303536 in words is "seventy-two million, three hundred three thousand, five hundred thirty-six".