190413657 has 18 divisors (see below), whose sum is σ = 319947498. Its totient is φ = 108807552.

The previous prime is 190413653. The next prime is 190413667. The reversal of 190413657 is 756314091.

190413657 is a `hidden beast` number, since 190 + 413 + 6 + 57 = 666.

It can be written as a sum of positive squares in only one way, i.e., 108493056 + 81920601 = 10416^2 + 9051^2 .

It is not a de Polignac number, because 190413657 - 2² = 190413653 is a prime.

It is a super-2 number, since 2×190413657² = 72514721544227298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190413653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 215448 + ... + 216329.

It is an arithmetic number, because the mean of its divisors is an integer number (17774861).

Almost surely, 2^190413657 is an apocalyptic number.

It is an amenable number.

190413657 is a deficient number, since it is larger than the sum of its proper divisors (129533841).

190413657 is a wasteful number, since it uses less digits than its factorization.

190413657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431797 (or 431787 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 190413657 is about 13799.0455104692. The cubic root of 190413657 is about 575.3066110179.

The spelling of 190413657 in words is "one hundred ninety million, four hundred thirteen thousand, six hundred fifty-seven".