426280569 has 32 divisors (see below), whose sum is σ = 672706944. Its totient is φ = 236705280.

The previous prime is 426280531. The next prime is 426280573. The reversal of 426280569 is 965082624.

It is not a de Polignac number, because 426280569 - 2⁸ = 426280313 is a prime.

It is a super-4 number, since 4×426280569⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3, 2.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 426280569.

It is not an unprimeable number, because it can be changed into a prime (426280529) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55147 + ... + 62399.

It is an arithmetic number, because the mean of its divisors is an integer number (21022092).

Almost surely, 2^426280569 is an apocalyptic number.

It is an amenable number.

426280569 is a deficient number, since it is larger than the sum of its proper divisors (246426375).

426280569 is a wasteful number, since it uses less digits than its factorization.

426280569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7417.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 426280569 is about 20646.5631280366. The cubic root of 426280569 is about 752.6016721891.

The spelling of 426280569 in words is "four hundred twenty-six million, two hundred eighty thousand, five hundred sixty-nine".