445430916 has 108 divisors (see below), whose sum is σ = 1309287616. Its totient is φ = 125068320.

The previous prime is 445430897. The next prime is 445430969. The reversal of 445430916 is 619034544.

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

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3400171 + ... + 3400301.

Almost surely, 2^445430916 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 445430916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (654643808).

445430916 is an abundant number, since it is smaller than the sum of its proper divisors (863856700).

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

445430916 is a wasteful number, since it uses less digits than its factorization.

445430916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 445430916 is about 21105.2343270574. The cubic root of 445430916 is about 763.7070251712.

The spelling of 445430916 in words is "four hundred forty-five million, four hundred thirty thousand, nine hundred sixteen".