42915942 has 24 divisors (see below), whose sum is σ = 93459600. Its totient is φ = 14232240.

The previous prime is 42915941. The next prime is 42916009. The reversal of 42915942 is 24951924.

42915942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 42915897 and 42915906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42915941) by changing a digit.

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, 2409 + ... + 9572.

It is an arithmetic number, because the mean of its divisors is an integer number (3894150).

Almost surely, 2^42915942 is an apocalyptic number.

42915942 is an abundant number, since it is smaller than the sum of its proper divisors (50543658).

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

42915942 is a wasteful number, since it uses less digits than its factorization.

42915942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12188 (or 12185 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 42915942 is about 6551.0260265091. The cubic root of 42915942 is about 350.1113713602. Note that the first 3 decimals are identical.

It can be divided in two parts, 429159 and 42, that added together give a triangular number (429201 = T₉₂₆).

The spelling of 42915942 in words is "forty-two million, nine hundred fifteen thousand, nine hundred forty-two".