42260689 has 4 divisors (see below), whose sum is σ = 42309540. Its totient is φ = 42211840.

The previous prime is 42260677. The next prime is 42260711. The reversal of 42260689 is 98606224.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19536400 + 22724289 = 4420^2 + 4767^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42260689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42260629) 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, 23104 + ... + 24865.

It is an arithmetic number, because the mean of its divisors is an integer number (10577385).

Almost surely, 2^42260689 is an apocalyptic number.

It is an amenable number.

42260689 is a deficient number, since it is larger than the sum of its proper divisors (48851).

42260689 is an equidigital number, since it uses as much as digits as its factorization.

42260689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48850.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 42260689 is about 6500.8221787709. The cubic root of 42260689 is about 348.3203577706.

The spelling of 42260689 in words is "forty-two million, two hundred sixty thousand, six hundred eighty-nine".