445280700 has 72 divisors (see below), whose sum is σ = 1290886128. Its totient is φ = 118507520.

The previous prime is 445280651. The next prime is 445280701. The reversal of 445280700 is 7082544.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445280701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 194764 + ... + 197036.

It is an arithmetic number, because the mean of its divisors is an integer number (17928974).

Almost surely, 2^445280700 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 445280700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (645443064).

445280700 is an abundant number, since it is smaller than the sum of its proper divisors (845605428).

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

445280700 is a wasteful number, since it uses less digits than its factorization.

445280700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2943 (or 2936 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 445280700 is about 21101.6752889433. The cubic root of 445280700 is about 763.6211653077.

The spelling of 445280700 in words is "four hundred forty-five million, two hundred eighty thousand, seven hundred".