20044831 has 4 divisors (see below), whose sum is σ = 20057464. Its totient is φ = 20032200.

The previous prime is 20044823. The next prime is 20044841. The reversal of 20044831 is 13844002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13844002 = 2 ⋅6922001.

It is a cyclic number.

It is not a de Polignac number, because 20044831 - 2³ = 20044823 is a prime.

It is a super-2 number, since 2×20044831² = 803590499637122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20044811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3525 + ... + 7246.

It is an arithmetic number, because the mean of its divisors is an integer number (5014366).

Almost surely, 2^20044831 is an apocalyptic number.

20044831 is a deficient number, since it is larger than the sum of its proper divisors (12633).

20044831 is a wasteful number, since it uses less digits than its factorization.

20044831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12632.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 20044831 is about 4477.1454075114. The cubic root of 20044831 is about 271.6444270669.

Adding to 20044831 its reverse (13844002), we get a palindrome (33888833).

The spelling of 20044831 in words is "twenty million, forty-four thousand, eight hundred thirty-one".