42328459 has 2 divisors, whose sum is σ = 42328460. Its totient is φ = 42328458.

The previous prime is 42328439. The next prime is 42328493. The reversal of 42328459 is 95482324.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42328459 - 2⁵ = 42328427 is a prime.

It is not a weakly prime, because it can be changed into another prime (42328439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21164229 + 21164230.

It is an arithmetic number, because the mean of its divisors is an integer number (21164230).

Almost surely, 2^42328459 is an apocalyptic number.

42328459 is a deficient number, since it is larger than the sum of its proper divisors (1).

42328459 is an equidigital number, since it uses as much as digits as its factorization.

42328459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 37.

The square root of 42328459 is about 6506.0325083725. The cubic root of 42328459 is about 348.5064492603.

It can be divided in two parts, 423 and 28459, that added together give a palindrome (28882).

The spelling of 42328459 in words is "forty-two million, three hundred twenty-eight thousand, four hundred fifty-nine".