44448444 has 36 divisors (see below), whose sum is σ = 112672560. Its totient is φ = 14774400.

The previous prime is 44448401. The next prime is 44448449. The reversal of 44448444 is 44484444.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×44448444² = 3951328348042272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 44448399 and 44448408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44448449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12897 + ... + 15975.

Almost surely, 2^44448444 is an apocalyptic number.

It is an amenable number.

44448444 is an abundant number, since it is smaller than the sum of its proper divisors (68224116).

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

44448444 is a wasteful number, since it uses less digits than its factorization.

44448444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3490 (or 3485 counting only the distinct ones).

The product of its digits is 131072, while the sum is 36.

The square root of 44448444 is about 6666.9666265851. The cubic root of 44448444 is about 354.2301481471.

The spelling of 44448444 in words is "forty-four million, four hundred forty-eight thousand, four hundred forty-four".