42020124 has 24 divisors (see below), whose sum is σ = 103814928. Its totient is φ = 13182720.

The previous prime is 42020093. The next prime is 42020131. The reversal of 42020124 is 42102024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102787 + ... + 103194.

It is an arithmetic number, because the mean of its divisors is an integer number (4325622).

Almost surely, 2^42020124 is an apocalyptic number.

It is an amenable number.

42020124 is an abundant number, since it is smaller than the sum of its proper divisors (61794804).

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

42020124 is a wasteful number, since it uses less digits than its factorization.

42020124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206005 (or 206003 counting only the distinct ones).

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

The square root of 42020124 is about 6482.2931127804. The cubic root of 42020124 is about 347.6581727354.

Adding to 42020124 its reverse (42102024), we get a palindrome (84122148).

The spelling of 42020124 in words is "forty-two million, twenty thousand, one hundred twenty-four".