465989856 has 48 divisors (see below), whose sum is σ = 1295182224. Its totient is φ = 146192384.

The previous prime is 465989851. The next prime is 465989857. The reversal of 465989856 is 658989564.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 465989856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (465989851) 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, 141135 + ... + 144398.

It is an arithmetic number, because the mean of its divisors is an integer number (26982963).

Almost surely, 2^465989856 is an apocalyptic number.

It is an amenable number.

465989856 is an abundant number, since it is smaller than the sum of its proper divisors (829192368).

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

465989856 is a wasteful number, since it uses less digits than its factorization.

465989856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285563 (or 285555 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 60.

The square root of 465989856 is about 21586.7981877813. The cubic root of 465989856 is about 775.2804290746.

The spelling of 465989856 in words is "four hundred sixty-five million, nine hundred eighty-nine thousand, eight hundred fifty-six".