190889757 has 16 divisors (see below), whose sum is σ = 284441280. Its totient is φ = 126521136.

The previous prime is 190889749. The next prime is 190889759. The reversal of 190889757 is 757988091.

It is not a de Polignac number, because 190889757 - 2³ = 190889749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190889759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15763 + ... + 25104.

It is an arithmetic number, because the mean of its divisors is an integer number (17777580).

Almost surely, 2^190889757 is an apocalyptic number.

It is an amenable number.

190889757 is a deficient number, since it is larger than the sum of its proper divisors (93551523).

190889757 is a wasteful number, since it uses less digits than its factorization.

190889757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41049 (or 41043 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 54.

The square root of 190889757 is about 13816.2859336364. The cubic root of 190889757 is about 575.7857004451.

The spelling of 190889757 in words is "one hundred ninety million, eight hundred eighty-nine thousand, seven hundred fifty-seven".