404061564 has 48 divisors (see below), whose sum is σ = 977478656. Its totient is φ = 129772800.

The previous prime is 404061563. The next prime is 404061599. The reversal of 404061564 is 465160404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404061563) 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, 87399 + ... + 91905.

Almost surely, 2^404061564 is an apocalyptic number.

It is an amenable number.

404061564 is an abundant number, since it is smaller than the sum of its proper divisors (573417092).

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

404061564 is a wasteful number, since it uses less digits than its factorization.

404061564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4786 (or 4784 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 404061564 is about 20101.2826456423. The cubic root of 404061564 is about 739.2917279607.

It can be divided in two parts, 40 and 4061564, that added together give a palindrome (4061604).

The spelling of 404061564 in words is "four hundred four million, sixty-one thousand, five hundred sixty-four".