72707190 has 32 divisors (see below), whose sum is σ = 174721536. Its totient is φ = 19363680.

The previous prime is 72707189. The next prime is 72707191. The reversal of 72707190 is 9170727.

It is an interprime number because it is at equal distance from previous prime (72707189) and next prime (72707191).

It is a super-2 number, since 2×72707190² = 10572670955392200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72707191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45139 + ... + 46721.

It is an arithmetic number, because the mean of its divisors is an integer number (5460048).

Almost surely, 2^72707190 is an apocalyptic number.

72707190 is an abundant number, since it is smaller than the sum of its proper divisors (102014346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72707190 is a wasteful number, since it uses less digits than its factorization.

72707190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3124.

The product of its (nonzero) digits is 6174, while the sum is 33.

The square root of 72707190 is about 8526.8511186721. The cubic root of 72707190 is about 417.3743798382.

The spelling of 72707190 in words is "seventy-two million, seven hundred seven thousand, one hundred ninety".