42293994 has 24 divisors (see below), whose sum is σ = 89860128. Its totient is φ = 13268160.

The previous prime is 42293969. The next prime is 42294023. The reversal of 42293994 is 49939224.

42293994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11 ways as a sum of consecutive naturals, for example, 10462 + ... + 13929.

It is an arithmetic number, because the mean of its divisors is an integer number (3744172).

Almost surely, 2^42293994 is an apocalyptic number.

42293994 is an abundant number, since it is smaller than the sum of its proper divisors (47566134).

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

42293994 is a wasteful number, since it uses less digits than its factorization.

42293994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24430 (or 24413 counting only the distinct ones).

The product of its digits is 139968, while the sum is 42.

The square root of 42293994 is about 6503.3832733432. The cubic root of 42293994 is about 348.4118357189.

The spelling of 42293994 in words is "forty-two million, two hundred ninety-three thousand, nine hundred ninety-four".