445772700 has 144 divisors (see below), whose sum is σ = 1447407360. Its totient is φ = 117685440.

The previous prime is 445772669. The next prime is 445772711. The reversal of 445772700 is 7277544.

It is a happy number.

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 polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 288129 + ... + 289671.

It is an arithmetic number, because the mean of its divisors is an integer number (10051440).

Almost surely, 2^445772700 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 445772700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (723703680).

445772700 is an abundant number, since it is smaller than the sum of its proper divisors (1001634660).

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

445772700 is a wasteful number, since it uses less digits than its factorization.

445772700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673 (or 1660 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 445772700 is about 21113.3299126405. The cubic root of 445772700 is about 763.9023088086.

The spelling of 445772700 in words is "four hundred forty-five million, seven hundred seventy-two thousand, seven hundred".