190394690 has 16 divisors (see below), whose sum is σ = 357611328. Its totient is φ = 72846576.

The previous prime is 190394663. The next prime is 190394707. The reversal of 190394690 is 96493091.

It is a super-2 number, since 2×190394690² = 72500275960392200, which contains 22 as substring.

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, 413672 + ... + 414131.

It is an arithmetic number, because the mean of its divisors is an integer number (22350708).

Almost surely, 2^190394690 is an apocalyptic number.

190394690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190394690 is a deficient number, since it is larger than the sum of its proper divisors (167216638).

190394690 is a wasteful number, since it uses less digits than its factorization.

190394690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827833.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 190394690 is about 13798.3582356743. The cubic root of 190394690 is about 575.2875083916.

The spelling of 190394690 in words is "one hundred ninety million, three hundred ninety-four thousand, six hundred ninety".