72036424 has 16 divisors (see below), whose sum is σ = 135158400. Its totient is φ = 35994192.

The previous prime is 72036421. The next prime is 72036427. The reversal of 72036424 is 42463027.

It is an interprime number because it is at equal distance from previous prime (72036421) and next prime (72036427).

It is a junction number, because it is equal to n+sod(n) for n = 72036392 and 72036401.

It is not an unprimeable number, because it can be changed into a prime (72036421) 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, 21537 + ... + 24655.

It is an arithmetic number, because the mean of its divisors is an integer number (8447400).

Almost surely, 2^72036424 is an apocalyptic number.

It is an amenable number.

72036424 is a deficient number, since it is larger than the sum of its proper divisors (63121976).

72036424 is a wasteful number, since it uses less digits than its factorization.

72036424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6012 (or 6008 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 72036424 is about 8487.4274076424. The cubic root of 72036424 is about 416.0869055368.

The spelling of 72036424 in words is "seventy-two million, thirty-six thousand, four hundred twenty-four".