72024436 has 12 divisors (see below), whose sum is σ = 137501280. Its totient is φ = 32738360.

The previous prime is 72024401. The next prime is 72024437. The reversal of 72024436 is 63442027.

It is a super-2 number, since 2×72024436² = 10375038762236192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72024437) 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, 818416 + ... + 818503.

It is an arithmetic number, because the mean of its divisors is an integer number (11458440).

Almost surely, 2^72024436 is an apocalyptic number.

It is an amenable number.

72024436 is a deficient number, since it is larger than the sum of its proper divisors (65476844).

72024436 is a wasteful number, since it uses less digits than its factorization.

72024436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636934 (or 1636932 counting only the distinct ones).

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

The square root of 72024436 is about 8486.7211571961. The cubic root of 72024436 is about 416.0638231096.

The spelling of 72024436 in words is "seventy-two million, twenty-four thousand, four hundred thirty-six".