464631909 has 48 divisors (see below), whose sum is σ = 753758208. Its totient is φ = 249342624.

The previous prime is 464631907. The next prime is 464631929. The reversal of 464631909 is 909136464.

It is not a de Polignac number, because 464631909 - 2¹ = 464631907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464631907) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1265844 + ... + 1266210.

It is an arithmetic number, because the mean of its divisors is an integer number (15703296).

Almost surely, 2^464631909 is an apocalyptic number.

It is an amenable number.

464631909 is a deficient number, since it is larger than the sum of its proper divisors (289126299).

464631909 is a wasteful number, since it uses less digits than its factorization.

464631909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 563 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 464631909 is about 21555.3220574409. The cubic root of 464631909 is about 774.5266114915.

The spelling of 464631909 in words is "four hundred sixty-four million, six hundred thirty-one thousand, nine hundred nine".