445663704 has 64 divisors (see below), whose sum is σ = 1182729600. Its totient is φ = 139457024.

The previous prime is 445663651. The next prime is 445663711. The reversal of 445663704 is 407366544.

It is a happy number.

It is a super-2 number, since 2×445663704² = 397232274125999232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189367 + ... + 191705.

It is an arithmetic number, because the mean of its divisors is an integer number (18480150).

Almost surely, 2^445663704 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 445663704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (591364800).

445663704 is an abundant number, since it is smaller than the sum of its proper divisors (737065896).

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

445663704 is a wasteful number, since it uses less digits than its factorization.

445663704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832 (or 2828 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 39.

The square root of 445663704 is about 21110.7485419158. The cubic root of 445663704 is about 763.8400430821.

The spelling of 445663704 in words is "four hundred forty-five million, six hundred sixty-three thousand, seven hundred four".