20024331 has 16 divisors (see below), whose sum is σ = 27264384. Its totient is φ = 13070144.

The previous prime is 20024327. The next prime is 20024339. The reversal of 20024331 is 13342002.

It is a cyclic number.

It is not a de Polignac number, because 20024331 - 2² = 20024327 is a prime.

It is a super-2 number, since 2×20024331² = 801947663995122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20024331.

It is not an unprimeable number, because it can be changed into a prime (20024339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33820 + ... + 34406.

It is an arithmetic number, because the mean of its divisors is an integer number (1704024).

Almost surely, 2^20024331 is an apocalyptic number.

20024331 is a deficient number, since it is larger than the sum of its proper divisors (7240053).

20024331 is a wasteful number, since it uses less digits than its factorization.

20024331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20024331 is about 4474.8554166587. The cubic root of 20024331 is about 271.5517912111.

Adding to 20024331 its reverse (13342002), we get a palindrome (33366333).

It can be divided in two parts, 200 and 24331, that added together give a triangular number (24531 = T₂₂₁).

The spelling of 20024331 in words is "twenty million, twenty-four thousand, three hundred thirty-one".