190978914 has 16 divisors (see below), whose sum is σ = 436523328. Its totient is φ = 54565392.

The previous prime is 190978903. The next prime is 190978967. The reversal of 190978914 is 419879091.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2273517 + ... + 2273600.

It is an arithmetic number, because the mean of its divisors is an integer number (27282708).

Almost surely, 2^190978914 is an apocalyptic number.

190978914 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

190978914 is an abundant number, since it is smaller than the sum of its proper divisors (245544414).

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

190978914 is a wasteful number, since it uses less digits than its factorization.

190978914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4547129.

The product of its (nonzero) digits is 163296, while the sum is 48.

The square root of 190978914 is about 13819.5120753231. The cubic root of 190978914 is about 575.8753286793.

The spelling of 190978914 in words is "one hundred ninety million, nine hundred seventy-eight thousand, nine hundred fourteen".