464399815 has 12 divisors (see below), whose sum is σ = 612547992. Its totient is φ = 337744880.

The previous prime is 464399813. The next prime is 464399827. The reversal of 464399815 is 518993464.

It is a happy number.

It is not a de Polignac number, because 464399815 - 2¹ = 464399813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464399813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 383197 + ... + 384406.

It is an arithmetic number, because the mean of its divisors is an integer number (51045666).

Almost surely, 2^464399815 is an apocalyptic number.

464399815 is a deficient number, since it is larger than the sum of its proper divisors (148148177).

464399815 is a wasteful number, since it uses less digits than its factorization.

464399815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767630 (or 767619 counting only the distinct ones).

The product of its digits is 933120, while the sum is 49.

The square root of 464399815 is about 21549.9377029262. The cubic root of 464399815 is about 774.3976255738.

The spelling of 464399815 in words is "four hundred sixty-four million, three hundred ninety-nine thousand, eight hundred fifteen".