42024413 has 4 divisors (see below), whose sum is σ = 42046620. Its totient is φ = 42002208.

The previous prime is 42024401. The next prime is 42024457. The reversal of 42024413 is 31442024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23551609 + 18472804 = 4853^2 + 4298^2 .

It is a cyclic number.

It is not a de Polignac number, because 42024413 - 2¹⁰ = 42023389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42023413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7970 + ... + 12147.

It is an arithmetic number, because the mean of its divisors is an integer number (10511655).

Almost surely, 2^42024413 is an apocalyptic number.

It is an amenable number.

42024413 is a deficient number, since it is larger than the sum of its proper divisors (22207).

42024413 is a wasteful number, since it uses less digits than its factorization.

42024413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22206.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 42024413 is about 6482.6239286264. The cubic root of 42024413 is about 347.6700008393.

Adding to 42024413 its reverse (31442024), we get a palindrome (73466437).

The spelling of 42024413 in words is "forty-two million, twenty-four thousand, four hundred thirteen".