444484136 has 16 divisors (see below), whose sum is σ = 833738400. Its totient is φ = 222153904.

The previous prime is 444484127. The next prime is 444484171. The reversal of 444484136 is 631484444.

It is a happy number.

It is a super-2 number, since 2×444484136² = 395132294311332992, 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 444484136.

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, 13655 + ... + 32793.

It is an arithmetic number, because the mean of its divisors is an integer number (52108650).

Almost surely, 2^444484136 is an apocalyptic number.

It is an amenable number.

444484136 is a deficient number, since it is larger than the sum of its proper divisors (389254264).

444484136 is a wasteful number, since it uses less digits than its factorization.

444484136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22048 (or 22044 counting only the distinct ones).

The product of its digits is 147456, while the sum is 38.

The square root of 444484136 is about 21082.7924146684. The cubic root of 444484136 is about 763.1655454371.

It can be divided in two parts, 44448 and 4136, that added together give a palindrome (48584).

The spelling of 444484136 in words is "four hundred forty-four million, four hundred eighty-four thousand, one hundred thirty-six".