464305640 has 32 divisors (see below), whose sum is σ = 1045440000. Its totient is φ = 185588544.

The previous prime is 464305627. The next prime is 464305657. The reversal of 464305640 is 46503464.

It is a junction number, because it is equal to n+sod(n) for n = 464305597 and 464305606.

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, 67061 + ... + 73659.

It is an arithmetic number, because the mean of its divisors is an integer number (32670000).

Almost surely, 2^464305640 is an apocalyptic number.

464305640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

464305640 is an abundant number, since it is smaller than the sum of its proper divisors (581134360).

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

464305640 is a wasteful number, since it uses less digits than its factorization.

464305640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8369 (or 8365 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 464305640 is about 21547.7525510203. The cubic root of 464305640 is about 774.3452756917.

The spelling of 464305640 in words is "four hundred sixty-four million, three hundred five thousand, six hundred forty".