189090766 has 16 divisors (see below), whose sum is σ = 290707200. Its totient is φ = 92217528.

The previous prime is 189090739. The next prime is 189090787. The reversal of 189090766 is 667090981.

It is a congruent number.

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, 5905 + ... + 20323.

It is an arithmetic number, because the mean of its divisors is an integer number (18169200).

Almost surely, 2^189090766 is an apocalyptic number.

189090766 is a deficient number, since it is larger than the sum of its proper divisors (101616434).

189090766 is a wasteful number, since it uses less digits than its factorization.

189090766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14583.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 189090766 is about 13751.0278161307. The cubic root of 189090766 is about 573.9712073843.

The spelling of 189090766 in words is "one hundred eighty-nine million, ninety thousand, seven hundred sixty-six".