72349226 has 16 divisors (see below), whose sum is σ = 117922560. Its totient is φ = 33164640.

The previous prime is 72349219. The next prime is 72349231. The reversal of 72349226 is 62294327.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29531 + ... + 31886.

It is an arithmetic number, because the mean of its divisors is an integer number (7370160).

Almost surely, 2^72349226 is an apocalyptic number.

72349226 is a deficient number, since it is larger than the sum of its proper divisors (45573334).

72349226 is a wasteful number, since it uses less digits than its factorization.

72349226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61469.

The product of its digits is 36288, while the sum is 35.

The square root of 72349226 is about 8505.8348208744. The cubic root of 72349226 is about 416.6882905755.

The spelling of 72349226 in words is "seventy-two million, three hundred forty-nine thousand, two hundred twenty-six".