190913690 has 16 divisors (see below), whose sum is σ = 374885280. Its totient is φ = 69423120.

The previous prime is 190913683. The next prime is 190913707. The reversal of 190913690 is 96319091.

It is a super-2 number, since 2×190913690² = 72896074058832200, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 867680 + ... + 867899.

It is an arithmetic number, because the mean of its divisors is an integer number (23430330).

Almost surely, 2^190913690 is an apocalyptic number.

190913690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190913690 is a deficient number, since it is larger than the sum of its proper divisors (183971590).

190913690 is a wasteful number, since it uses less digits than its factorization.

190913690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735597.

The product of its (nonzero) digits is 13122, while the sum is 38.

The square root of 190913690 is about 13817.1520220341. The cubic root of 190913690 is about 575.8097626814.

The spelling of 190913690 in words is "one hundred ninety million, nine hundred thirteen thousand, six hundred ninety".