42940558 has 4 divisors (see below), whose sum is σ = 64410840. Its totient is φ = 21470278.

The previous prime is 42940537. The next prime is 42940567. The reversal of 42940558 is 85504924.

42940558 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×42940558³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10735138 + ... + 10735141.

It is an arithmetic number, because the mean of its divisors is an integer number (16102710).

Almost surely, 2^42940558 is an apocalyptic number.

42940558 is a deficient number, since it is larger than the sum of its proper divisors (21470282).

42940558 is a wasteful number, since it uses less digits than its factorization.

42940558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21470281.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 42940558 is about 6552.9045468403. The cubic root of 42940558 is about 350.1782982709.

The spelling of 42940558 in words is "forty-two million, nine hundred forty thousand, five hundred fifty-eight".