42694040 has 16 divisors (see below), whose sum is σ = 96061680. Its totient is φ = 17077600.

The previous prime is 42694033. The next prime is 42694081. The reversal of 42694040 is 4049624.

42694040 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 = 42693994 and 42694012.

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 3 ways as a sum of consecutive naturals, for example, 533636 + ... + 533715.

It is an arithmetic number, because the mean of its divisors is an integer number (6003855).

Almost surely, 2^42694040 is an apocalyptic number.

42694040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42694040 is an abundant number, since it is smaller than the sum of its proper divisors (53367640).

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

42694040 is a wasteful number, since it uses less digits than its factorization.

42694040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067362 (or 1067358 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 42694040 is about 6534.0676458084. The cubic root of 42694040 is about 349.5068974483.

The spelling of 42694040 in words is "forty-two million, six hundred ninety-four thousand, forty".