978214426 has 16 divisors (see below), whose sum is σ = 1749849984. Its totient is φ = 401007024.

The previous prime is 978214417. The next prime is 978214427. The reversal of 978214426 is 624412879.

It is not an unprimeable number, because it can be changed into a prime (978214427) 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, 1518645 + ... + 1519288.

It is an arithmetic number, because the mean of its divisors is an integer number (109365624).

Almost surely, 2^978214426 is an apocalyptic number.

978214426 is a deficient number, since it is larger than the sum of its proper divisors (771635558).

978214426 is a wasteful number, since it uses less digits than its factorization.

978214426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3037965.

The product of its digits is 193536, while the sum is 43.

The square root of 978214426 is about 31276.4196480352. The cubic root of 978214426 is about 992.6847597462.

The spelling of 978214426 in words is "nine hundred seventy-eight million, two hundred fourteen thousand, four hundred twenty-six".