2044521 has 20 divisors (see below), whose sum is σ = 3130512. Its totient is φ = 1329048.

The previous prime is 2044519. The next prime is 2044541. The reversal of 2044521 is 1254402.

It is not a de Polignac number, because 2044521 - 2¹ = 2044519 is a prime.

It is a super-2 number, since 2×2044521² = 8360132238882, which contains 22 as substring.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 2044494 and 2044503.

It is not an unprimeable number, because it can be changed into a prime (2044541) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3190 + ... + 3776.

2^2044521 is an apocalyptic number.

It is an amenable number.

2044521 is a deficient number, since it is larger than the sum of its proper divisors (1085991).

2044521 is an equidigital number, since it uses as much as digits as its factorization.

2044521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642 (or 633 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2044521 is about 1429.8674763767. The cubic root of 2044521 is about 126.9201349604.

Adding to 2044521 its reverse (1254402), we get a palindrome (3298923).

The spelling of 2044521 in words is "two million, forty-four thousand, five hundred twenty-one".