445410252 has 84 divisors (see below), whose sum is σ = 1335680976. Its totient is φ = 127254240.

The previous prime is 445410197. The next prime is 445410257. The reversal of 445410252 is 252014544.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (445410257) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 9502 + ... + 31322.

It is an arithmetic number, because the mean of its divisors is an integer number (15900964).

Almost surely, 2^445410252 is an apocalyptic number.

445410252 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 445410252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (667840488).

445410252 is an abundant number, since it is smaller than the sum of its proper divisors (890270724).

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

445410252 is a wasteful number, since it uses less digits than its factorization.

445410252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21850 (or 21833 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 445410252 is about 21104.7447745762. The cubic root of 445410252 is about 763.6952152695.

Adding to 445410252 its reverse (252014544), we get a palindrome (697424796).

It can be divided in two parts, 4454 and 10252, that added together give a triangular number (14706 = T₁₇₁).

The spelling of 445410252 in words is "four hundred forty-five million, four hundred ten thousand, two hundred fifty-two".