42024020 has 24 divisors (see below), whose sum is σ = 89245800. Its totient is φ = 16620032.

The previous prime is 42024007. The next prime is 42024023. The reversal of 42024020 is 2042024.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 59536 + 41964484 = 244^2 + 6478^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42023986 and 42024004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42024023) 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, 10025 + ... + 13584.

It is an arithmetic number, because the mean of its divisors is an integer number (3718575).

Almost surely, 2^42024020 is an apocalyptic number.

It is an amenable number.

42024020 is an abundant number, since it is smaller than the sum of its proper divisors (47221780).

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

42024020 is a wasteful number, since it uses less digits than its factorization.

42024020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23707 (or 23705 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 42024020 is about 6482.5936167556. The cubic root of 42024020 is about 347.6689170666.

Adding to 42024020 its reverse (2042024), we get a palindrome (44066044).

The spelling of 42024020 in words is "forty-two million, twenty-four thousand, twenty".