426565490 has 16 divisors (see below), whose sum is σ = 826881048. Its totient is φ = 157501056.

The previous prime is 426565481. The next prime is 426565493. The reversal of 426565490 is 94565624.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 211033729 + 215531761 = 14527^2 + 14681^2 .

It is not an unprimeable number, because it can be changed into a prime (426565493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1640507 + ... + 1640766.

Almost surely, 2^426565490 is an apocalyptic number.

426565490 is a deficient number, since it is larger than the sum of its proper divisors (400315558).

426565490 is a wasteful number, since it uses less digits than its factorization.

426565490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3281293.

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 426565490 is about 20653.4619374089. The cubic root of 426565490 is about 752.7693115951.

The spelling of 426565490 in words is "four hundred twenty-six million, five hundred sixty-five thousand, four hundred ninety".