426914978 has 8 divisors (see below), whose sum is σ = 731854272. Its totient is φ = 182963556.

The previous prime is 426914951. The next prime is 426914993. The reversal of 426914978 is 879419624.

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

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 3 ways as a sum of consecutive naturals, for example, 15246950 + ... + 15246977.

It is an arithmetic number, because the mean of its divisors is an integer number (91481784).

Almost surely, 2^426914978 is an apocalyptic number.

426914978 is a deficient number, since it is larger than the sum of its proper divisors (304939294).

426914978 is a wasteful number, since it uses less digits than its factorization.

426914978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30493936.

The product of its digits is 870912, while the sum is 50.

The square root of 426914978 is about 20661.9209658734. The cubic root of 426914978 is about 752.9748384769.

The spelling of 426914978 in words is "four hundred twenty-six million, nine hundred fourteen thousand, nine hundred seventy-eight".