72195336 has 24 divisors (see below), whose sum is σ = 195529230. Its totient is φ = 24065088.

The previous prime is 72195329. The next prime is 72195353. The reversal of 72195336 is 63359127.

It can be written as a sum of positive squares in only one way, i.e., 47692836 + 24502500 = 6906^2 + 4950^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 72195336.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 501285 + ... + 501428.

Almost surely, 2^72195336 is an apocalyptic number.

It is an amenable number.

72195336 is an abundant number, since it is smaller than the sum of its proper divisors (123333894).

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

72195336 is a wasteful number, since it uses less digits than its factorization.

72195336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002725 (or 1002718 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 72195336 is about 8496.7838621445. The cubic root of 72195336 is about 416.3926427234.

The spelling of 72195336 in words is "seventy-two million, one hundred ninety-five thousand, three hundred thirty-six".