20124342 has 32 divisors (see below), whose sum is σ = 51110400. Its totient is φ = 5749704.

The previous prime is 20124331. The next prime is 20124353. The reversal of 20124342 is 24342102.

It is an interprime number because it is at equal distance from previous prime (20124331) and next prime (20124353).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26242 + ... + 26997.

It is an arithmetic number, because the mean of its divisors is an integer number (1597200).

Almost surely, 2^20124342 is an apocalyptic number.

20124342 is an abundant number, since it is smaller than the sum of its proper divisors (30986058).

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

20124342 is a wasteful number, since it uses less digits than its factorization.

20124342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53257 (or 53251 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 20124342 is about 4486.0162728193. The cubic root of 20124342 is about 272.0031267662.

Adding to 20124342 its reverse (24342102), we get a palindrome (44466444).

The spelling of 20124342 in words is "twenty million, one hundred twenty-four thousand, three hundred forty-two".