190918688 has 48 divisors (see below), whose sum is σ = 397948320. Its totient is φ = 89911296.

The previous prime is 190918661. The next prime is 190918723. The reversal of 190918688 is 886819091.

It is a happy number.

190918688 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 116531 + ... + 118157.

It is an arithmetic number, because the mean of its divisors is an integer number (8290590).

Almost surely, 2^190918688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190918688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198974160).

190918688 is an abundant number, since it is smaller than the sum of its proper divisors (207029632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190918688 is a wasteful number, since it uses less digits than its factorization.

190918688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849 (or 1841 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 50.

The square root of 190918688 is about 13817.3328830133. The cubic root of 190918688 is about 575.8147874164.

The spelling of 190918688 in words is "one hundred ninety million, nine hundred eighteen thousand, six hundred eighty-eight".