190072506 has 64 divisors (see below), whose sum is σ = 431827200. Its totient is φ = 55334400.

The previous prime is 190072481. The next prime is 190072517. The reversal of 190072506 is 605270091.

190072506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×190072506² = 72255115074240072, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) 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 31 ways as a sum of consecutive naturals, for example, 180670 + ... + 181718.

It is an arithmetic number, because the mean of its divisors is an integer number (6747300).

Almost surely, 2^190072506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190072506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215913600).

190072506 is an abundant number, since it is smaller than the sum of its proper divisors (241754694).

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

190072506 is a wasteful number, since it uses less digits than its factorization.

190072506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 190072506 is about 13786.6785702721. The cubic root of 190072506 is about 574.9628265823.

The spelling of 190072506 in words is "one hundred ninety million, seventy-two thousand, five hundred six".