445040252 has 12 divisors (see below), whose sum is σ = 782164656. Its totient is φ = 221564640.

The previous prime is 445040243. The next prime is 445040257. The reversal of 445040252 is 252040544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445040257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237824 + ... + 239687.

It is an arithmetic number, because the mean of its divisors is an integer number (65180388).

Almost surely, 2^445040252 is an apocalyptic number.

It is an amenable number.

445040252 is a deficient number, since it is larger than the sum of its proper divisors (337124404).

445040252 is a wasteful number, since it uses less digits than its factorization.

445040252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477748 (or 477746 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 445040252 is about 21095.9771520544. The cubic root of 445040252 is about 763.4836907953.

Adding to 445040252 its reverse (252040544), we get a palindrome (697080796).

The spelling of 445040252 in words is "four hundred forty-five million, forty thousand, two hundred fifty-two".