445022120 has 16 divisors (see below), whose sum is σ = 1001299860. Its totient is φ = 178008832.

The previous prime is 445022119. The next prime is 445022131. The reversal of 445022120 is 21220544.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 366416164 + 78605956 = 19142^2 + 8866^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 445022092 and 445022101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5562737 + ... + 5562816.

Almost surely, 2^445022120 is an apocalyptic number.

445022120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

445022120 is an abundant number, since it is smaller than the sum of its proper divisors (556277740).

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

445022120 is a wasteful number, since it uses less digits than its factorization.

445022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11125564 (or 11125560 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 445022120 is about 21095.5473974960. The cubic root of 445022120 is about 763.4733219397.

Adding to 445022120 its reverse (21220544), we get a palindrome (466242664).

The spelling of 445022120 in words is "four hundred forty-five million, twenty-two thousand, one hundred twenty".