42434401 has 2 divisors, whose sum is σ = 42434402. Its totient is φ = 42434400.

The previous prime is 42434377. The next prime is 42434411. The reversal of 42434401 is 10443424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41667025 + 767376 = 6455^2 + 876^2 .

It is a cyclic number.

It is not a de Polignac number, because 42434401 - 2⁹ = 42433889 is a prime.

It is not a weakly prime, because it can be changed into another prime (42434411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21217200 + 21217201.

It is an arithmetic number, because the mean of its divisors is an integer number (21217201).

Almost surely, 2^42434401 is an apocalyptic number.

It is an amenable number.

42434401 is a deficient number, since it is larger than the sum of its proper divisors (1).

42434401 is an equidigital number, since it uses as much as digits as its factorization.

42434401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 42434401 is about 6514.1692486456. The cubic root of 42434401 is about 348.7969607416.

Adding to 42434401 its reverse (10443424), we get a palindrome (52877825).

The spelling of 42434401 in words is "forty-two million, four hundred thirty-four thousand, four hundred one".