444405464 has 16 divisors (see below), whose sum is σ = 847384200. Its totient is φ = 218436352.

The previous prime is 444405433. The next prime is 444405469. The reversal of 444405464 is 464504444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444405469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470297 + ... + 471240.

Almost surely, 2^444405464 is an apocalyptic number.

It is an amenable number.

444405464 is a deficient number, since it is larger than the sum of its proper divisors (402978736).

444405464 is a wasteful number, since it uses less digits than its factorization.

444405464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941602 (or 941598 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 35.

The square root of 444405464 is about 21080.9265451023. The cubic root of 444405464 is about 763.1205169816.

The spelling of 444405464 in words is "four hundred forty-four million, four hundred five thousand, four hundred sixty-four".