190472900 has 18 divisors (see below), whose sum is σ = 413326410. Its totient is φ = 76189120.

The previous prime is 190472873. The next prime is 190472923. The reversal of 190472900 is 9274091.

It can be written as a sum of positive squares in 3 ways, for example, as 50665924 + 139806976 = 7118^2 + 11824^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 952265 + ... + 952464.

Almost surely, 2^190472900 is an apocalyptic number.

190472900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190472900 is an abundant number, since it is smaller than the sum of its proper divisors (222853510).

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

190472900 is a wasteful number, since it uses less digits than its factorization.

190472900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904743 (or 1904736 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 190472900 is about 13801.1919775069. The cubic root of 190472900 is about 575.3662694759.

The spelling of 190472900 in words is "one hundred ninety million, four hundred seventy-two thousand, nine hundred".