42507258 has 16 divisors (see below), whose sum is σ = 86456160. Its totient is φ = 13928816.

The previous prime is 42507251. The next prime is 42507271. The reversal of 42507258 is 85270524.

It is not an unprimeable number, because it can be changed into a prime (42507251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59685 + ... + 60392.

It is an arithmetic number, because the mean of its divisors is an integer number (5403510).

Almost surely, 2^42507258 is an apocalyptic number.

42507258 is an abundant number, since it is smaller than the sum of its proper divisors (43948902).

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

42507258 is a wasteful number, since it uses less digits than its factorization.

42507258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120141.

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 42507258 is about 6519.7590446273. The cubic root of 42507258 is about 348.9964668788.

The spelling of 42507258 in words is "forty-two million, five hundred seven thousand, two hundred fifty-eight".