44115021 has 12 divisors (see below), whose sum is σ = 63801660. Its totient is φ = 29373120.

The previous prime is 44115013. The next prime is 44115031. The reversal of 44115021 is 12051144.

It can be written as a sum of positive squares in 2 ways, for example, as 37380996 + 6734025 = 6114^2 + 2595^2 .

It is not a de Polignac number, because 44115021 - 2³ = 44115013 is a prime.

It is a super-2 number, since 2×44115021² = 3892270155660882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 44114985 and 44115003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44115031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5865 + ... + 11073.

It is an arithmetic number, because the mean of its divisors is an integer number (5316805).

Almost surely, 2^44115021 is an apocalyptic number.

It is an amenable number.

44115021 is a deficient number, since it is larger than the sum of its proper divisors (19686639).

44115021 is a wasteful number, since it uses less digits than its factorization.

44115021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6156 (or 6153 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 44115021 is about 6641.9139560822. The cubic root of 44115021 is about 353.3421902570.

Adding to 44115021 its reverse (12051144), we get a palindrome (56166165).

The spelling of 44115021 in words is "forty-four million, one hundred fifteen thousand, twenty-one".