444231442 has 8 divisors (see below), whose sum is σ = 668825100. Its totient is φ = 221289744.

The previous prime is 444231427. The next prime is 444231461. The reversal of 444231442 is 244132444.

It can be written as a sum of positive squares in 2 ways, for example, as 303073281 + 141158161 = 17409^2 + 11881^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×444231442² = 394683148122798728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 444231442.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412317 + ... + 413392.

Almost surely, 2^444231442 is an apocalyptic number.

444231442 is a deficient number, since it is larger than the sum of its proper divisors (224593658).

444231442 is a wasteful number, since it uses less digits than its factorization.

444231442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825980.

The product of its digits is 12288, while the sum is 28.

The square root of 444231442 is about 21076.7986658316. The cubic root of 444231442 is about 763.0208954219.

Adding to 444231442 its reverse (244132444), we get a palindrome (688363886).

The spelling of 444231442 in words is "four hundred forty-four million, two hundred thirty-one thousand, four hundred forty-two".