44444820 has 192 divisors, whose sum is σ = 152409600. Its totient is φ = 9461760.

The previous prime is 44444789. The next prime is 44444837. The reversal of 44444820 is 2844444.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 499336 + ... + 499424.

It is an arithmetic number, because the mean of its divisors is an integer number (793800).

Almost surely, 2^44444820 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 44444820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76204800).

44444820 is an abundant number, since it is smaller than the sum of its proper divisors (107964780).

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

44444820 is a wasteful number, since it uses less digits than its factorization.

44444820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 30.

The square root of 44444820 is about 6666.6948332738. The cubic root of 44444820 is about 354.2205207764.

The spelling of 44444820 in words is "forty-four million, four hundred forty-four thousand, eight hundred twenty".