42357499 has 2 divisors, whose sum is σ = 42357500. Its totient is φ = 42357498.

The previous prime is 42357461. The next prime is 42357521. The reversal of 42357499 is 99475324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42357499 - 2¹⁷ = 42226427 is a prime.

It is not a weakly prime, because it can be changed into another prime (42357449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21178749 + 21178750.

It is an arithmetic number, because the mean of its divisors is an integer number (21178750).

Almost surely, 2^42357499 is an apocalyptic number.

42357499 is a deficient number, since it is larger than the sum of its proper divisors (1).

42357499 is an equidigital number, since it uses as much as digits as its factorization.

42357499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 43.

The square root of 42357499 is about 6508.2639006113. The cubic root of 42357499 is about 348.5861301963.

The spelling of 42357499 in words is "forty-two million, three hundred fifty-seven thousand, four hundred ninety-nine".