445513020 has 48 divisors (see below), whose sum is σ = 1259804448. Its totient is φ = 117625600.

The previous prime is 445512983. The next prime is 445513021. The reversal of 445513020 is 20315544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445513021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30699 + ... + 42818.

It is an arithmetic number, because the mean of its divisors is an integer number (26245926).

Almost surely, 2^445513020 is an apocalyptic number.

It is an amenable number.

445513020 is an abundant number, since it is smaller than the sum of its proper divisors (814291428).

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

445513020 is a wasteful number, since it uses less digits than its factorization.

445513020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73630 (or 73628 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 445513020 is about 21107.1793473216. The cubic root of 445513020 is about 763.7539456903.

Adding to 445513020 its reverse (20315544), we get a palindrome (465828564).

The spelling of 445513020 in words is "four hundred forty-five million, five hundred thirteen thousand, twenty".