42024401 has 2 divisors, whose sum is σ = 42024402. Its totient is φ = 42024400.

The previous prime is 42024337. The next prime is 42024457. The reversal of 42024401 is 10442024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36966400 + 5058001 = 6080^2 + 2249^2 .

It is a cyclic number.

It is not a de Polignac number, because 42024401 - 2⁶ = 42024337 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42024401.

It is not a weakly prime, because it can be changed into another prime (42024491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21012200 + 21012201.

It is an arithmetic number, because the mean of its divisors is an integer number (21012201).

Almost surely, 2^42024401 is an apocalyptic number.

It is an amenable number.

42024401 is a deficient number, since it is larger than the sum of its proper divisors (1).

42024401 is an equidigital number, since it uses as much as digits as its factorization.

42024401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 42024401 is about 6482.6230030752. The cubic root of 42024401 is about 347.6699677471.

Adding to 42024401 its reverse (10442024), we get a palindrome (52466425).

The spelling of 42024401 in words is "forty-two million, twenty-four thousand, four hundred one".