20044616 has 16 divisors (see below), whose sum is σ = 37649340. Its totient is φ = 10004800.

The previous prime is 20044589. The next prime is 20044627. The reversal of 20044616 is 61644002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18232900 + 1811716 = 4270^2 + 1346^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20044591 and 20044600.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3566 + ... + 7266.

Almost surely, 2^20044616 is an apocalyptic number.

It is an amenable number.

20044616 is a deficient number, since it is larger than the sum of its proper divisors (17604724).

20044616 is a wasteful number, since it uses less digits than its factorization.

20044616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4384 (or 4380 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 20044616 is about 4477.1213966119. The cubic root of 20044616 is about 271.6434558479.

Adding to 20044616 its reverse (61644002), we get a palindrome (81688618).

It can be divided in two parts, 200 and 44616, that multiplied together give a triangular number (8923200 = T₄₂₂₄).

The spelling of 20044616 in words is "twenty million, forty-four thousand, six hundred sixteen".