445261432 has 96 divisors (see below), whose sum is σ = 1093962240. Its totient is φ = 167832000.

The previous prime is 445261391. The next prime is 445261469. The reversal of 445261432 is 234162544.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 445261394 and 445261403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132007 + ... + 135337.

It is an arithmetic number, because the mean of its divisors is an integer number (11395440).

Almost surely, 2^445261432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445261432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (546981120).

445261432 is an abundant number, since it is smaller than the sum of its proper divisors (648700808).

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

445261432 is a wasteful number, since it uses less digits than its factorization.

445261432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393 (or 3382 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

The square root of 445261432 is about 21101.2187325756. The cubic root of 445261432 is about 763.6101507837.

The spelling of 445261432 in words is "four hundred forty-five million, two hundred sixty-one thousand, four hundred thirty-two".