445322052 has 72 divisors (see below), whose sum is σ = 1302828800. Its totient is φ = 125618688.

The previous prime is 445322051. The next prime is 445322077. The reversal of 445322052 is 250223544.

It is a happy number.

445322052 is a `hidden beast` number, since 4 + 453 + 2 + 205 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (445322051) 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, 8724 + ... + 31092.

Almost surely, 2^445322052 is an apocalyptic number.

445322052 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445322052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (651414400).

445322052 is an abundant number, since it is smaller than the sum of its proper divisors (857506748).

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

445322052 is a wasteful number, since it uses less digits than its factorization.

445322052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22465 (or 22460 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 445322052 is about 21102.6550936132. The cubic root of 445322052 is about 763.6448030453.

Adding to 445322052 its reverse (250223544), we get a palindrome (695545596).

The spelling of 445322052 in words is "four hundred forty-five million, three hundred twenty-two thousand, fifty-two".