445970772 has 120 divisors (see below), whose sum is σ = 1267999656. Its totient is φ = 135862272.

The previous prime is 445970761. The next prime is 445970807. The reversal of 445970772 is 277079544.

It can be written as a sum of positive squares in 4 ways, for example, as 69455556 + 376515216 = 8334^2 + 19404^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 475488 + ... + 476424.

Almost surely, 2^445970772 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 445970772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (633999828).

445970772 is an abundant number, since it is smaller than the sum of its proper divisors (822028884).

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

445970772 is a wasteful number, since it uses less digits than its factorization.

445970772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079 (or 1068 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The square root of 445970772 is about 21118.0200776493. The cubic root of 445970772 is about 764.0154346635.

The spelling of 445970772 in words is "four hundred forty-five million, nine hundred seventy thousand, seven hundred seventy-two".