426220405 has 16 divisors (see below), whose sum is σ = 557786880. Its totient is φ = 310759488.

The previous prime is 426220397. The next prime is 426220409. The reversal of 426220405 is 504022624.

It is not a de Polignac number, because 426220405 - 2³ = 426220397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 426220405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426220409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36367 + ... + 46636.

It is an arithmetic number, because the mean of its divisors is an integer number (34861680).

Almost surely, 2^426220405 is an apocalyptic number.

It is an amenable number.

426220405 is a deficient number, since it is larger than the sum of its proper divisors (131566475).

426220405 is a wasteful number, since it uses less digits than its factorization.

426220405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83100.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 426220405 is about 20645.1060786812. The cubic root of 426220405 is about 752.5662638527.

The spelling of 426220405 in words is "four hundred twenty-six million, two hundred twenty thousand, four hundred five".