72412836 has 12 divisors (see below), whose sum is σ = 168963312. Its totient is φ = 24137608.

The previous prime is 72412831. The next prime is 72412867. The reversal of 72412836 is 63821427.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 72412797 and 72412806.

It is not an unprimeable number, because it can be changed into a prime (72412831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3017190 + ... + 3017213.

It is an arithmetic number, because the mean of its divisors is an integer number (14080276).

Almost surely, 2^72412836 is an apocalyptic number.

It is an amenable number.

72412836 is an abundant number, since it is smaller than the sum of its proper divisors (96550476).

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

72412836 is a wasteful number, since it uses less digits than its factorization.

72412836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6034410 (or 6034408 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 72412836 is about 8509.5731972879. The cubic root of 72412836 is about 416.8103733282.

The spelling of 72412836 in words is "seventy-two million, four hundred twelve thousand, eight hundred thirty-six".