444402525 has 144 divisors (see below), whose sum is σ = 931904640. Its totient is φ = 182784000.

The previous prime is 444402521. The next prime is 444402529. The reversal of 444402525 is 525204444.

It is an interprime number because it is at equal distance from previous prime (444402521) and next prime (444402529).

It is not a de Polignac number, because 444402525 - 2² = 444402521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 444402492 and 444402501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444402521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4399975 + ... + 4400075.

It is an arithmetic number, because the mean of its divisors is an integer number (6471560).

Almost surely, 2^444402525 is an apocalyptic number.

It is an amenable number.

444402525 is an abundant number, since it is smaller than the sum of its proper divisors (487502115).

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

444402525 is a wasteful number, since it uses less digits than its factorization.

444402525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

The square root of 444402525 is about 21080.8568374248. The cubic root of 444402525 is about 763.1188347220.

Adding to 444402525 its reverse (525204444), we get a palindrome (969606969).

The spelling of 444402525 in words is "four hundred forty-four million, four hundred two thousand, five hundred twenty-five".