72790292 has 24 divisors (see below), whose sum is σ = 135085440. Its totient is φ = 34223040.

The previous prime is 72790241. The next prime is 72790301. The reversal of 72790292 is 29209727.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6917 + ... + 13907.

It is an arithmetic number, because the mean of its divisors is an integer number (5628560).

Almost surely, 2^72790292 is an apocalyptic number.

It is an amenable number.

72790292 is a deficient number, since it is larger than the sum of its proper divisors (62295148).

72790292 is a wasteful number, since it uses less digits than its factorization.

72790292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7151 (or 7149 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 72790292 is about 8531.7226865388. The cubic root of 72790292 is about 417.5333344964.

It can be divided in two parts, 727 and 90292, that added together give a palindrome (91019).

The spelling of 72790292 in words is "seventy-two million, seven hundred ninety thousand, two hundred ninety-two".