42609258 has 24 divisors (see below), whose sum is σ = 92697696. Its totient is φ = 14145000.

The previous prime is 42609257. The next prime is 42609263. The reversal of 42609258 is 85290624.

It is a happy number.

42609258 is a `hidden beast` number, since 42 + 609 + 2 + 5 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (42609251) 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 11 ways as a sum of consecutive naturals, for example, 198 + ... + 9233.

It is an arithmetic number, because the mean of its divisors is an integer number (3862404).

Almost surely, 2^42609258 is an apocalyptic number.

42609258 is an abundant number, since it is smaller than the sum of its proper divisors (50088438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42609258 is a wasteful number, since it uses less digits than its factorization.

42609258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9690 (or 9687 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 42609258 is about 6527.5767326015. The cubic root of 42609258 is about 349.2753933959.

The spelling of 42609258 in words is "forty-two million, six hundred nine thousand, two hundred fifty-eight".