426140406 has 32 divisors (see below), whose sum is σ = 969006720. Its totient is φ = 138742632.

The previous prime is 426140383. The next prime is 426140431. The reversal of 426140406 is 604041624.

426140406 is a `hidden beast` number, since 4 + 2 + 614 + 0 + 40 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 426140406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89440 + ... + 94083.

It is an arithmetic number, because the mean of its divisors is an integer number (30281460).

Almost surely, 2^426140406 is an apocalyptic number.

426140406 is an abundant number, since it is smaller than the sum of its proper divisors (542866314).

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

426140406 is a wasteful number, since it uses less digits than its factorization.

426140406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183577 (or 183571 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 426140406 is about 20643.1685067966. The cubic root of 426140406 is about 752.5191768566.

The spelling of 426140406 in words is "four hundred twenty-six million, one hundred forty thousand, four hundred six".