445689088 has 72 divisors (see below), whose sum is σ = 965303528. Its totient is φ = 204152832.

The previous prime is 445689067. The next prime is 445689089. The reversal of 445689088 is 880986544.

It can be written as a sum of positive squares in 4 ways, for example, as 14379264 + 431309824 = 3792^2 + 20768^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445689089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522070 + ... + 522922.

Almost surely, 2^445689088 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 445689088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (482651764).

445689088 is an abundant number, since it is smaller than the sum of its proper divisors (519614440).

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

445689088 is a wasteful number, since it uses less digits than its factorization.

445689088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039 (or 1025 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 52.

The square root of 445689088 is about 21111.3497436805. The cubic root of 445689088 is about 763.8545450091.

The spelling of 445689088 in words is "four hundred forty-five million, six hundred eighty-nine thousand, eighty-eight".