426409956 has 108 divisors (see below), whose sum is σ = 1262391312. Its totient is φ = 121002336.

The previous prime is 426409943. The next prime is 426409969. The reversal of 426409956 is 659904624.

It is an interprime number because it is at equal distance from previous prime (426409943) and next prime (426409969).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 286791 + ... + 288273.

Almost surely, 2^426409956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426409956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (631195656).

426409956 is an abundant number, since it is smaller than the sum of its proper divisors (835981356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

426409956 is a wasteful number, since it uses less digits than its factorization.

426409956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670 (or 1658 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 426409956 is about 20649.6962689527. The cubic root of 426409956 is about 752.6778090727.

The spelling of 426409956 in words is "four hundred twenty-six million, four hundred nine thousand, nine hundred fifty-six".