42488239 has 2 divisors, whose sum is σ = 42488240. Its totient is φ = 42488238.

The previous prime is 42488233. The next prime is 42488267. The reversal of 42488239 is 93288424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42488239 - 2⁵ = 42488207 is a prime.

It is a super-2 number, since 2×42488239² = 3610500906642242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42488233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21244119 + 21244120.

It is an arithmetic number, because the mean of its divisors is an integer number (21244120).

Almost surely, 2^42488239 is an apocalyptic number.

42488239 is a deficient number, since it is larger than the sum of its proper divisors (1).

42488239 is an equidigital number, since it uses as much as digits as its factorization.

42488239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 40.

The square root of 42488239 is about 6518.3003152662. The cubic root of 42488239 is about 348.9444086790.

The spelling of 42488239 in words is "forty-two million, four hundred eighty-eight thousand, two hundred thirty-nine".