72196512 has 48 divisors (see below), whose sum is σ = 193560192. Its totient is φ = 23552000.

The previous prime is 72196507. The next prime is 72196513. The reversal of 72196512 is 21569127.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×72196512² = 10424672689932288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72196513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3489 + ... + 12512.

It is an arithmetic number, because the mean of its divisors is an integer number (4032504).

Almost surely, 2^72196512 is an apocalyptic number.

It is an amenable number.

72196512 is an abundant number, since it is smaller than the sum of its proper divisors (121363680).

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

72196512 is a wasteful number, since it uses less digits than its factorization.

72196512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16061 (or 16053 counting only the distinct ones).

The product of its digits is 7560, while the sum is 33.

The square root of 72196512 is about 8496.8530645175. The cubic root of 72196512 is about 416.3949036039.

It can be divided in two parts, 7219 and 6512, that added together give a palindrome (13731).

The spelling of 72196512 in words is "seventy-two million, one hundred ninety-six thousand, five hundred twelve".