20024142 has 16 divisors (see below), whose sum is σ = 40804560. Its totient is φ = 6548672.

The previous prime is 20024131. The next prime is 20024143. The reversal of 20024142 is 24142002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20024143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31167 + ... + 31802.

It is an arithmetic number, because the mean of its divisors is an integer number (2550285).

Almost surely, 2^20024142 is an apocalyptic number.

20024142 is an abundant number, since it is smaller than the sum of its proper divisors (20780418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20024142 is a wasteful number, since it uses less digits than its factorization.

20024142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63027.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 20024142 is about 4474.8342986082. The cubic root of 20024142 is about 271.5509368596.

Adding to 20024142 its reverse (24142002), we get a palindrome (44166144).

It can be divided in two parts, 200 and 24142, that added together give a palindrome (24342).

The spelling of 20024142 in words is "twenty million, twenty-four thousand, one hundred forty-two".