444140402 has 12 divisors (see below), whose sum is σ = 707705610. Its totient is φ = 209006976.

The previous prime is 444140401. The next prime is 444140407. The reversal of 444140402 is 204041444.

It can be written as a sum of positive squares in 3 ways, for example, as 423989281 + 20151121 = 20591^2 + 4489^2 .

It is not an unprimeable number, because it can be changed into a prime (444140401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 383627 + ... + 384782.

Almost surely, 2^444140402 is an apocalyptic number.

444140402 is a deficient number, since it is larger than the sum of its proper divisors (263565208).

444140402 is a wasteful number, since it uses less digits than its factorization.

444140402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768445 (or 768428 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 444140402 is about 21074.6388343905. The cubic root of 444140402 is about 762.9687678133.

Adding to 444140402 its reverse (204041444), we get a palindrome (648181846).

The spelling of 444140402 in words is "four hundred forty-four million, one hundred forty thousand, four hundred two".