190813790 has 16 divisors (see below), whose sum is σ = 351453168. Its totient is φ = 74550336.

The previous prime is 190813787. The next prime is 190813801. The reversal of 190813790 is 97318091.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221447 + ... + 222306.

It is an arithmetic number, because the mean of its divisors is an integer number (21965823).

Almost surely, 2^190813790 is an apocalyptic number.

190813790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190813790 is a deficient number, since it is larger than the sum of its proper divisors (160639378).

190813790 is a wasteful number, since it uses less digits than its factorization.

190813790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443803.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 190813790 is about 13813.5364769490. The cubic root of 190813790 is about 575.7093099032.

The spelling of 190813790 in words is "one hundred ninety million, eight hundred thirteen thousand, seven hundred ninety".