190684664 has 24 divisors (see below), whose sum is σ = 360197640. Its totient is φ = 94637088.

The previous prime is 190684649. The next prime is 190684673. The reversal of 190684664 is 466486091.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 196709 + ... + 197675.

It is an arithmetic number, because the mean of its divisors is an integer number (15008235).

Almost surely, 2^190684664 is an apocalyptic number.

It is an amenable number.

190684664 is a deficient number, since it is larger than the sum of its proper divisors (169512976).

190684664 is an equidigital number, since it uses as much as digits as its factorization.

190684664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287 (or 1126 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 190684664 is about 13808.8617923419. The cubic root of 190684664 is about 575.5794174473.

It can be divided in two parts, 19068 and 4664, that added together give a palindrome (23732).

The spelling of 190684664 in words is "one hundred ninety million, six hundred eighty-four thousand, six hundred sixty-four".