464644090 has 24 divisors (see below), whose sum is σ = 866209500. Its totient is φ = 179445504.

The previous prime is 464644087. The next prime is 464644097. The reversal of 464644090 is 90446464.

It can be written as a sum of positive squares in 6 ways, for example, as 256736529 + 207907561 = 16023^2 + 14419^2 .

It is not an unprimeable number, because it can be changed into a prime (464644097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19215 + ... + 36034.

Almost surely, 2^464644090 is an apocalyptic number.

464644090 is a deficient number, since it is larger than the sum of its proper divisors (401565410).

464644090 is a wasteful number, since it uses less digits than its factorization.

464644090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55314 (or 55285 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 464644090 is about 21555.6046076189. The cubic root of 464644090 is about 774.5333798789.

The spelling of 464644090 in words is "four hundred sixty-four million, six hundred forty-four thousand, ninety".