42691892 has 12 divisors (see below), whose sum is σ = 75451236. Its totient is φ = 21134400.

The previous prime is 42691889. The next prime is 42691897. The reversal of 42691892 is 29819624.

42691892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 38390416 + 4301476 = 6196^2 + 2074^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42691897) 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 3 ways as a sum of consecutive naturals, for example, 52433 + ... + 53240.

It is an arithmetic number, because the mean of its divisors is an integer number (6287603).

Almost surely, 2^42691892 is an apocalyptic number.

It is an amenable number.

42691892 is a deficient number, since it is larger than the sum of its proper divisors (32759344).

42691892 is a wasteful number, since it uses less digits than its factorization.

42691892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105778 (or 105776 counting only the distinct ones).

The product of its digits is 62208, while the sum is 41.

The square root of 42691892 is about 6533.9032744601. The cubic root of 42691892 is about 349.5010359479.

The spelling of 42691892 in words is "forty-two million, six hundred ninety-one thousand, eight hundred ninety-two".