44393820 has 48 divisors (see below), whose sum is σ = 125220480. Its totient is φ = 11750976.

The previous prime is 44393819. The next prime is 44393831. The reversal of 44393820 is 2839344.

44393820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×44393820² = 3941622508384800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5679 + ... + 11001.

It is an arithmetic number, because the mean of its divisors is an integer number (2608760).

Almost surely, 2^44393820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44393820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62610240).

44393820 is an abundant number, since it is smaller than the sum of its proper divisors (80826660).

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

44393820 is a wasteful number, since it uses less digits than its factorization.

44393820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5474 (or 5472 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 44393820 is about 6662.8687515214. The cubic root of 44393820 is about 354.0849807152.

The spelling of 44393820 in words is "forty-four million, three hundred ninety-three thousand, eight hundred twenty".