190688480 has 48 divisors (see below), whose sum is σ = 451350144. Its totient is φ = 76131840.

The previous prime is 190688461. The next prime is 190688489. The reversal of 190688480 is 84886091.

It is a happy number.

It is a Cunningham number, because it is equal to 13809²-1.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190688489) 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, 137390 + ... + 138770.

It is an arithmetic number, because the mean of its divisors is an integer number (9403128).

Almost surely, 2^190688480 is an apocalyptic number.

190688480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190688480 is an abundant number, since it is smaller than the sum of its proper divisors (260661664).

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

190688480 is a wasteful number, since it uses less digits than its factorization.

190688480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2259 (or 2251 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 190688480 is about 13808.9999637917. Note that the first 4 decimals coincide. The cubic root of 190688480 is about 575.5832569388.

The spelling of 190688480 in words is "one hundred ninety million, six hundred eighty-eight thousand, four hundred eighty".