72491110 has 8 divisors (see below), whose sum is σ = 130484016. Its totient is φ = 28996440.

The previous prime is 72491087. The next prime is 72491143. The reversal of 72491110 is 1119427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×72491110² = 10509922058064200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3624546 + ... + 3624565.

It is an arithmetic number, because the mean of its divisors is an integer number (16310502).

Almost surely, 2^72491110 is an apocalyptic number.

72491110 is a deficient number, since it is larger than the sum of its proper divisors (57992906).

72491110 is a wasteful number, since it uses less digits than its factorization.

72491110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7249118.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 72491110 is about 8514.1711281839. The cubic root of 72491110 is about 416.9605017154.

The spelling of 72491110 in words is "seventy-two million, four hundred ninety-one thousand, one hundred ten".