444240432 has 60 divisors (see below), whose sum is σ = 1245076560. Its totient is φ = 147863424.

The previous prime is 444240431. The next prime is 444240451. The reversal of 444240432 is 234042444.

It is a happy number.

It is a super-2 number, since 2×444240432² = 394699122847093248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 444240396 and 444240405.

It is not an unprimeable number, because it can be changed into a prime (444240431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118978 + ... + 122654.

It is an arithmetic number, because the mean of its divisors is an integer number (20751276).

Almost surely, 2^444240432 is an apocalyptic number.

It is an amenable number.

444240432 is an abundant number, since it is smaller than the sum of its proper divisors (800836128).

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

444240432 is a wasteful number, since it uses less digits than its factorization.

444240432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4530 (or 4521 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

The square root of 444240432 is about 21077.0119324348. The cubic root of 444240432 is about 763.0260425223.

Adding to 444240432 its reverse (234042444), we get a palindrome (678282876).

The spelling of 444240432 in words is "four hundred forty-four million, two hundred forty thousand, four hundred thirty-two".