465581856 has 48 divisors (see below), whose sum is σ = 1294048224. Its totient is φ = 146064384.

The previous prime is 465581843. The next prime is 465581869. The reversal of 465581856 is 658185564.

It is an interprime number because it is at equal distance from previous prime (465581843) and next prime (465581869).

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

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141010 + ... + 144273.

It is an arithmetic number, because the mean of its divisors is an integer number (26959338).

Almost surely, 2^465581856 is an apocalyptic number.

It is an amenable number.

465581856 is an abundant number, since it is smaller than the sum of its proper divisors (828466368).

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

465581856 is a wasteful number, since it uses less digits than its factorization.

465581856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285313 (or 285305 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 48.

The square root of 465581856 is about 21577.3458979551. The cubic root of 465581856 is about 775.0540959811.

The spelling of 465581856 in words is "four hundred sixty-five million, five hundred eighty-one thousand, eight hundred fifty-six".