978330194 has 8 divisors (see below), whose sum is σ = 1467894960. Its totient is φ = 489031876.

The previous prime is 978330193. The next prime is 978330203. The reversal of 978330194 is 491033879.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (978330191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57164 + ... + 72279.

It is an arithmetic number, because the mean of its divisors is an integer number (183486870).

Almost surely, 2^978330194 is an apocalyptic number.

978330194 is a deficient number, since it is larger than the sum of its proper divisors (489564766).

978330194 is a wasteful number, since it uses less digits than its factorization.

978330194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133224.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 978330194 is about 31278.2703166272. The cubic root of 978330194 is about 992.7239183714.

The spelling of 978330194 in words is "nine hundred seventy-eight million, three hundred thirty thousand, one hundred ninety-four".