72230739 has 16 divisors (see below), whose sum is σ = 116540928. Its totient is φ = 38846592.

The previous prime is 72230737. The next prime is 72230747. The reversal of 72230739 is 93703227.

It is not a de Polignac number, because 72230739 - 2¹ = 72230737 is a prime.

It is a super-2 number, since 2×72230739² = 10434559312972242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72230731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100807 + ... + 101520.

It is an arithmetic number, because the mean of its divisors is an integer number (7283808).

Almost surely, 2^72230739 is an apocalyptic number.

72230739 is a deficient number, since it is larger than the sum of its proper divisors (44310189).

72230739 is a wasteful number, since it uses less digits than its factorization.

72230739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202354.

The product of its (nonzero) digits is 15876, while the sum is 33.

The square root of 72230739 is about 8498.8669244788. The cubic root of 72230739 is about 416.4606948560.

The spelling of 72230739 in words is "seventy-two million, two hundred thirty thousand, seven hundred thirty-nine".