444480732 has 36 divisors (see below), whose sum is σ = 1139379696. Its totient is φ = 146072640.

The previous prime is 444480719. The next prime is 444480761. The reversal of 444480732 is 237084444.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×444480732² = 395126242238511648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84393 + ... + 89504.

It is an arithmetic number, because the mean of its divisors is an integer number (31649436).

Almost surely, 2^444480732 is an apocalyptic number.

It is an amenable number.

444480732 is an abundant number, since it is smaller than the sum of its proper divisors (694898964).

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

444480732 is a wasteful number, since it uses less digits than its factorization.

444480732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173978 (or 173973 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 36.

The square root of 444480732 is about 21082.7116851699. The cubic root of 444480732 is about 763.1635972445.

The spelling of 444480732 in words is "four hundred forty-four million, four hundred eighty thousand, seven hundred thirty-two".