190775690 has 16 divisors (see below), whose sum is σ = 392452992. Its totient is φ = 65408784.

The previous prime is 190775687. The next prime is 190775701. The reversal of 190775690 is 96577091.

It is a super-2 number, since 2×190775690² = 72790727789952200, which contains 22 as substring.

It is a Curzon number.

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, 1362614 + ... + 1362753.

It is an arithmetic number, because the mean of its divisors is an integer number (24528312).

Almost surely, 2^190775690 is an apocalyptic number.

190775690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190775690 is an abundant number, since it is smaller than the sum of its proper divisors (201677302).

190775690 is a wasteful number, since it uses less digits than its factorization.

190775690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2725381.

The product of its (nonzero) digits is 119070, while the sum is 44.

The square root of 190775690 is about 13812.1573260660. The cubic root of 190775690 is about 575.6709898482.

The spelling of 190775690 in words is "one hundred ninety million, seven hundred seventy-five thousand, six hundred ninety".