464889564 has 24 divisors (see below), whose sum is σ = 1205269520. Its totient is φ = 154963152.

The previous prime is 464889559. The next prime is 464889569. The reversal of 464889564 is 465988464.

It is an interprime number because it is at equal distance from previous prime (464889559) and next prime (464889569).

It is a super-2 number, since 2×464889564² = 432244613432220192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 464889564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464889569) 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, 2152159 + ... + 2152374.

Almost surely, 2^464889564 is an apocalyptic number.

It is an amenable number.

464889564 is an abundant number, since it is smaller than the sum of its proper divisors (740379956).

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

464889564 is a wasteful number, since it uses less digits than its factorization.

464889564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4304546 (or 4304538 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 54.

The square root of 464889564 is about 21561.2978273572. The cubic root of 464889564 is about 774.6697525987.

The spelling of 464889564 in words is "four hundred sixty-four million, eight hundred eighty-nine thousand, five hundred sixty-four".