42258708 has 18 divisors (see below), whose sum is σ = 106820714. Its totient is φ = 14086224.

The previous prime is 42258661. The next prime is 42258721. The reversal of 42258708 is 80785224.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 41757444 + 501264 = 6462^2 + 708^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1173853 = 42258708 / (4 + 2 + 2 + 5 + 8 + 7 + 0 + 8).

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 586891 + ... + 586962.

Almost surely, 2^42258708 is an apocalyptic number.

It is an amenable number.

42258708 is an abundant number, since it is smaller than the sum of its proper divisors (64562006).

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

42258708 is a wasteful number, since it uses less digits than its factorization.

42258708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173863 (or 1173858 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 42258708 is about 6500.6698116425. The cubic root of 42258708 is about 348.3149150970.

The spelling of 42258708 in words is "forty-two million, two hundred fifty-eight thousand, seven hundred eight".