44445408 has 144 divisors (see below), whose sum is σ = 142773120. Its totient is φ = 11826432.

The previous prime is 44445377. The next prime is 44445419. The reversal of 44445408 is 80454444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 753283 + ... + 753341.

It is an arithmetic number, because the mean of its divisors is an integer number (991480).

Almost surely, 2^44445408 is an apocalyptic number.

44445408 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44445408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71386560).

44445408 is an abundant number, since it is smaller than the sum of its proper divisors (98327712).

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

44445408 is a wasteful number, since it uses less digits than its factorization.

44445408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 33.

The square root of 44445408 is about 6666.7389329417. The cubic root of 44445408 is about 354.2220828688. Note that the first 3 decimals are identical.

The spelling of 44445408 in words is "forty-four million, four hundred forty-five thousand, four hundred eight".