426478 has 16 divisors (see below), whose sum is σ = 705600. Its totient is φ = 192096.

The previous prime is 426469. The next prime is 426487. The reversal of 426478 is 874624.

426478 is nontrivially palindromic in base 7.

It is an interprime number because it is at equal distance from previous prime (426469) and next prime (426487).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1048 + ... + 1396.

It is an arithmetic number, because the mean of its divisors is an integer number (44100).

2⁴²⁶⁴⁷⁸ is an apocalyptic number.

426478 is a deficient number, since it is larger than the sum of its proper divisors (279122).

426478 is a wasteful number, since it uses less digits than its factorization.

426478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411.

The product of its digits is 10752, while the sum is 31.

The square root of 426478 is about 653.0528309410. The cubic root of 426478 is about 75.2717842913.

The spelling of 426478 in words is "four hundred twenty-six thousand, four hundred seventy-eight".