72190118 has 64 divisors (see below), whose sum is σ = 147184128. Its totient is φ = 25643520.

The previous prime is 72190117. The next prime is 72190141. The reversal of 72190118 is 81109127.

It is a super-2 number, since 2×72190118² = 10422826273707848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72190117) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 214046 + ... + 214382.

It is an arithmetic number, because the mean of its divisors is an integer number (2299752).

Almost surely, 2^72190118 is an apocalyptic number.

72190118 is an abundant number, since it is smaller than the sum of its proper divisors (74994010).

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

72190118 is a wasteful number, since it uses less digits than its factorization.

72190118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 72190118 is about 8496.4767992386. The cubic root of 72190118 is about 416.3826107311.

The spelling of 72190118 in words is "seventy-two million, one hundred ninety thousand, one hundred eighteen".