420262564 has 12 divisors (see below), whose sum is σ = 752563504. Its totient is φ = 205244424.

The previous prime is 420262553. The next prime is 420262571. The reversal of 420262564 is 465262024.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1221522 + ... + 1221865.

Almost surely, 2^420262564 is an apocalyptic number.

It is an amenable number.

420262564 is a deficient number, since it is larger than the sum of its proper divisors (332300940).

420262564 is a wasteful number, since it uses less digits than its factorization.

420262564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443434 (or 2443432 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 420262564 is about 20500.3064367341. The cubic root of 420262564 is about 749.0432624270.

It can be divided in two parts, 4202 and 62564, that added together give a palindrome (66766).

The spelling of 420262564 in words is "four hundred twenty million, two hundred sixty-two thousand, five hundred sixty-four".