20044479 has 48 divisors (see below), whose sum is σ = 35507808. Its totient is φ = 9934848.

The previous prime is 20044463. The next prime is 20044499. The reversal of 20044479 is 97444002.

It is not a de Polignac number, because 20044479 - 2⁴ = 20044463 is a prime.

It is a super-2 number, since 2×20044479² = 803562276762882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20044459) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32179 + ... + 32795.

It is an arithmetic number, because the mean of its divisors is an integer number (739746).

Almost surely, 2^20044479 is an apocalyptic number.

20044479 is a deficient number, since it is larger than the sum of its proper divisors (15463329).

20044479 is a wasteful number, since it uses less digits than its factorization.

20044479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664 (or 657 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 20044479 is about 4477.1060965762. The cubic root of 20044479 is about 271.6428369745.

The spelling of 20044479 in words is "twenty million, forty-four thousand, four hundred seventy-nine".