42757258 has 16 divisors (see below), whose sum is σ = 67641120. Its totient is φ = 20214576.

The previous prime is 42757243. The next prime is 42757271. The reversal of 42757258 is 85275724.

It is a happy number.

It is a super-2 number, since 2×42757258² = 3656366223357128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42757258.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 32685 + ... + 33967.

It is an arithmetic number, because the mean of its divisors is an integer number (4227570).

Almost surely, 2^42757258 is an apocalyptic number.

42757258 is a deficient number, since it is larger than the sum of its proper divisors (24883862).

42757258 is a wasteful number, since it uses less digits than its factorization.

42757258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181.

The product of its digits is 156800, while the sum is 40.

The square root of 42757258 is about 6538.9034248871. The cubic root of 42757258 is about 349.6793198788.

The spelling of 42757258 in words is "forty-two million, seven hundred fifty-seven thousand, two hundred fifty-eight".