978408274 has 8 divisors (see below), whose sum is σ = 1470677760. Its totient is φ = 488182356.

The previous prime is 978408271. The next prime is 978408317. The reversal of 978408274 is 472804879.

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 (978408271) 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, 509694 + ... + 511609.

It is an arithmetic number, because the mean of its divisors is an integer number (183834720).

Almost surely, 2^978408274 is an apocalyptic number.

978408274 is a deficient number, since it is larger than the sum of its proper divisors (492269486).

978408274 is a wasteful number, since it uses less digits than its factorization.

978408274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021784.

The product of its (nonzero) digits is 903168, while the sum is 49.

The square root of 978408274 is about 31279.5184425848. The cubic root of 978408274 is about 992.7503272539.

The spelling of 978408274 in words is "nine hundred seventy-eight million, four hundred eight thousand, two hundred seventy-four".