190686768 has 40 divisors (see below), whose sum is σ = 504068928. Its totient is φ = 62083392.

The previous prime is 190686763. The next prime is 190686781. The reversal of 190686768 is 867686091.

It is a happy number.

190686768 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×190686768² = 72722886980571648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 190686768.

It is not an unprimeable number, because it can be changed into a prime (190686763) 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, 44130 + ... + 48257.

Almost surely, 2^190686768 is an apocalyptic number.

It is an amenable number.

190686768 is an abundant number, since it is smaller than the sum of its proper divisors (313382160).

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

190686768 is a wasteful number, since it uses less digits than its factorization.

190686768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92441 (or 92435 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 190686768 is about 13808.9379750942. The cubic root of 190686768 is about 575.5815344060.

The spelling of 190686768 in words is "one hundred ninety million, six hundred eighty-six thousand, seven hundred sixty-eight".