72396292 has 12 divisors (see below), whose sum is σ = 126858060. Its totient is φ = 36151136.

The previous prime is 72396271. The next prime is 72396293. The reversal of 72396292 is 29269327.

It can be written as a sum of positive squares in 2 ways, for example, as 11930116 + 60466176 = 3454^2 + 7776^2 .

It is not an unprimeable number, because it can be changed into a prime (72396293) 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, 8167 + ... + 14542.

It is an arithmetic number, because the mean of its divisors is an integer number (10571505).

Almost surely, 2^72396292 is an apocalyptic number.

It is an amenable number.

72396292 is a deficient number, since it is larger than the sum of its proper divisors (54461768).

72396292 is a wasteful number, since it uses less digits than its factorization.

72396292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23510 (or 23508 counting only the distinct ones).

The product of its digits is 81648, while the sum is 40.

The square root of 72396292 is about 8508.6010601038. The cubic root of 72396292 is about 416.7786283301.

It can be divided in two parts, 7239 and 6292, that added together give a palindrome (13531).

The spelling of 72396292 in words is "seventy-two million, three hundred ninety-six thousand, two hundred ninety-two".