42067684 has 12 divisors (see below), whose sum is σ = 73936044. Its totient is φ = 20943104.

The previous prime is 42067643. The next prime is 42067687. The reversal of 42067684 is 48676024.

It can be written as a sum of positive squares in 2 ways, for example, as 7139584 + 34928100 = 2672^2 + 5910^2 .

It is not an unprimeable number, because it can be changed into a prime (42067687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21637 + ... + 23500.

It is an arithmetic number, because the mean of its divisors is an integer number (6161337).

Almost surely, 2^42067684 is an apocalyptic number.

It is an amenable number.

42067684 is a deficient number, since it is larger than the sum of its proper divisors (31868360).

42067684 is a wasteful number, since it uses less digits than its factorization.

42067684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45374 (or 45372 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 42067684 is about 6485.9605302530. The cubic root of 42067684 is about 347.7892875987.

The spelling of 42067684 in words is "forty-two million, sixty-seven thousand, six hundred eighty-four".