42911958 has 16 divisors (see below), whose sum is σ = 86322096. Its totient is φ = 14220960.

The previous prime is 42911933. The next prime is 42911969. The reversal of 42911958 is 85911924.

42911958 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42911958² = 3682872278787528, which contains 22 as substring.

It is a Curzon number.

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 in 7 ways as a sum of consecutive naturals, for example, 19633 + ... + 21708.

It is an arithmetic number, because the mean of its divisors is an integer number (5395131).

Almost surely, 2^42911958 is an apocalyptic number.

42911958 is an abundant number, since it is smaller than the sum of its proper divisors (43410138).

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

42911958 is a wasteful number, since it uses less digits than its factorization.

42911958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41519.

The product of its digits is 25920, while the sum is 39.

The square root of 42911958 is about 6550.7219449462. The cubic root of 42911958 is about 350.1005371045.

The spelling of 42911958 in words is "forty-two million, nine hundred eleven thousand, nine hundred fifty-eight".