444545532 has 18 divisors (see below), whose sum is σ = 1123712408. Its totient is φ = 148181832.

The previous prime is 444545531. The next prime is 444545533. The reversal of 444545532 is 235545444.

444545532 is a `hidden beast` number, since 44 + 45 + 45 + 532 = 666.

It is an interprime number because it is at equal distance from previous prime (444545531) and next prime (444545533).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 12348487 = 444545532 / (4 + 4 + 4 + 5 + 4 + 5 + 5 + 3 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444545531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6174208 + ... + 6174279.

Almost surely, 2^444545532 is an apocalyptic number.

It is an amenable number.

444545532 is an abundant number, since it is smaller than the sum of its proper divisors (679166876).

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

444545532 is a wasteful number, since it uses less digits than its factorization.

444545532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12348497 (or 12348492 counting only the distinct ones).

The product of its digits is 192000, while the sum is 36.

The square root of 444545532 is about 21084.2484333685. The cubic root of 444545532 is about 763.2006821652.

The spelling of 444545532 in words is "four hundred forty-four million, five hundred forty-five thousand, five hundred thirty-two".