190921682 has 16 divisors (see below), whose sum is σ = 329465472. Its totient is φ = 81280800.

The previous prime is 190921681. The next prime is 190921697. The reversal of 190921682 is 286129091.

It is not an unprimeable number, because it can be changed into a prime (190921681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43043 + ... + 47270.

It is an arithmetic number, because the mean of its divisors is an integer number (20591592).

Almost surely, 2^190921682 is an apocalyptic number.

190921682 is a deficient number, since it is larger than the sum of its proper divisors (138543790).

190921682 is a wasteful number, since it uses less digits than its factorization.

190921682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90473.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 190921682 is about 13817.4412247710. The cubic root of 190921682 is about 575.8177973897.

The spelling of 190921682 in words is "one hundred ninety million, nine hundred twenty-one thousand, six hundred eighty-two".