44021328 has 160 divisors (see below), whose sum is σ = 133324800. Its totient is φ = 12400128.

The previous prime is 44021317. The next prime is 44021401. The reversal of 44021328 is 82312044.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 44021298 and 44021307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 557193 + ... + 557271.

It is an arithmetic number, because the mean of its divisors is an integer number (833280).

Almost surely, 2^44021328 is an apocalyptic number.

44021328 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 44021328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66662400).

44021328 is an abundant number, since it is smaller than the sum of its proper divisors (89303472).

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

44021328 is a wasteful number, since it uses less digits than its factorization.

44021328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 44021328 is about 6634.8570444283. The cubic root of 44021328 is about 353.0918661892.

The spelling of 44021328 in words is "forty-four million, twenty-one thousand, three hundred twenty-eight".