464447890 has 64 divisors (see below), whose sum is σ = 891813888. Its totient is φ = 173880000.

The previous prime is 464447887. The next prime is 464447911. The reversal of 464447890 is 98744464.

It is a self number, because there is not a number n which added to its sum of digits gives 464447890.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1850265 + ... + 1850515.

It is an arithmetic number, because the mean of its divisors is an integer number (13934592).

Almost surely, 2^464447890 is an apocalyptic number.

464447890 is a deficient number, since it is larger than the sum of its proper divisors (427365998).

464447890 is a wasteful number, since it uses less digits than its factorization.

464447890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463.

The product of its (nonzero) digits is 774144, while the sum is 46.

The square root of 464447890 is about 21551.0531065189. The cubic root of 464447890 is about 774.4243467166.

The spelling of 464447890 in words is "four hundred sixty-four million, four hundred forty-seven thousand, eight hundred ninety".