42488399 has 2 divisors, whose sum is σ = 42488400. Its totient is φ = 42488398.

The previous prime is 42488387. The next prime is 42488401. The reversal of 42488399 is 99388424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42488399 - 2⁸ = 42488143 is a prime.

Together with 42488401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42488359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21244199 + 21244200.

It is an arithmetic number, because the mean of its divisors is an integer number (21244200).

Almost surely, 2^42488399 is an apocalyptic number.

42488399 is a deficient number, since it is larger than the sum of its proper divisors (1).

42488399 is an equidigital number, since it uses as much as digits as its factorization.

42488399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 47.

The square root of 42488399 is about 6518.3125883928. The cubic root of 42488399 is about 348.9448466907.

The spelling of 42488399 in words is "forty-two million, four hundred eighty-eight thousand, three hundred ninety-nine".