190978304 has 36 divisors (see below), whose sum is σ = 415872240. Its totient is φ = 86807040.

The previous prime is 190978303. The next prime is 190978387. The reversal of 190978304 is 403879091.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (190978303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31094 + ... + 36725.

Almost surely, 2^190978304 is an apocalyptic number.

It is an amenable number.

190978304 is an abundant number, since it is smaller than the sum of its proper divisors (224893936).

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

190978304 is an equidigital number, since it uses as much as digits as its factorization.

190978304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67846 (or 67832 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 190978304 is about 13819.4900050617. The cubic root of 190978304 is about 575.8747155500.

The spelling of 190978304 in words is "one hundred ninety million, nine hundred seventy-eight thousand, three hundred four".