72199190 has 64 divisors (see below), whose sum is σ = 153446400. Its totient is φ = 23950080.

The previous prime is 72199163. The next prime is 72199199. The reversal of 72199190 is 9199127.

It is a super-2 number, since 2×72199190² = 10425446073312200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72199199) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 362711 + ... + 362909.

It is an arithmetic number, because the mean of its divisors is an integer number (2397600).

Almost surely, 2^72199190 is an apocalyptic number.

72199190 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72199190 is an abundant number, since it is smaller than the sum of its proper divisors (81247210).

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

72199190 is a wasteful number, since it uses less digits than its factorization.

72199190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357.

The product of its (nonzero) digits is 10206, while the sum is 38.

The square root of 72199190 is about 8497.0106508113. The cubic root of 72199190 is about 416.4000520141.

The spelling of 72199190 in words is "seventy-two million, one hundred ninety-nine thousand, one hundred ninety".