42490659 has 4 divisors (see below), whose sum is σ = 56654216. Its totient is φ = 28327104.

The previous prime is 42490639. The next prime is 42490661. The reversal of 42490659 is 95609424.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42490659 - 2⁵ = 42490627 is a prime.

It is a super-2 number, since 2×42490659² = 3610912204508562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42490639) 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 in 3 ways as a sum of consecutive naturals, for example, 7081774 + ... + 7081779.

It is an arithmetic number, because the mean of its divisors is an integer number (14163554).

Almost surely, 2^42490659 is an apocalyptic number.

42490659 is a deficient number, since it is larger than the sum of its proper divisors (14163557).

42490659 is a wasteful number, since it uses less digits than its factorization.

42490659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14163556.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 42490659 is about 6518.4859438370. The cubic root of 42490659 is about 348.9510334882.

The spelling of 42490659 in words is "forty-two million, four hundred ninety thousand, six hundred fifty-nine".