72435996 has 36 divisors (see below), whose sum is σ = 183619800. Its totient is φ = 24077088.

The previous prime is 72435991. The next prime is 72436061. The reversal of 72435996 is 69953427.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72435991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10990 + ... + 16298.

It is an arithmetic number, because the mean of its divisors is an integer number (5100550).

Almost surely, 2^72435996 is an apocalyptic number.

It is an amenable number.

72435996 is an abundant number, since it is smaller than the sum of its proper divisors (111183804).

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

72435996 is a wasteful number, since it uses less digits than its factorization.

72435996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5698 (or 5693 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 72435996 is about 8510.9339088023. The cubic root of 72435996 is about 416.8548051344.

The spelling of 72435996 in words is "seventy-two million, four hundred thirty-five thousand, nine hundred ninety-six".