44001020 has 72 divisors (see below), whose sum is σ = 109453680. Its totient is φ = 14810880.

The previous prime is 44001019. The next prime is 44001031. The reversal of 44001020 is 2010044.

44001020 = T₃₉₂ + T₃₉₃ + ... + T₆₈₆.

It is a super-2 number, since 2×44001020² = 3872179522080800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 44000992 and 44001010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57440 + ... + 58200.

It is an arithmetic number, because the mean of its divisors is an integer number (1520190).

Almost surely, 2^44001020 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 44001020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54726840).

44001020 is an abundant number, since it is smaller than the sum of its proper divisors (65452660).

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

44001020 is a wasteful number, since it uses less digits than its factorization.

44001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 44001020 is about 6633.3264656581. The cubic root of 44001020 is about 353.0375615080.

Adding to 44001020 its reverse (2010044), we get a palindrome (46011064).

The spelling of 44001020 in words is "forty-four million, one thousand, twenty".