42693644 has 12 divisors (see below), whose sum is σ = 85387344. Its totient is φ = 18297264.

The previous prime is 42693641. The next prime is 42693653. The reversal of 42693644 is 44639624.

42693644 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 42693598 and 42693607.

It is not an unprimeable number, because it can be changed into a prime (42693641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 762359 + ... + 762414.

It is an arithmetic number, because the mean of its divisors is an integer number (7115612).

Almost surely, 2^42693644 is an apocalyptic number.

It is an amenable number.

42693644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42693644 is a wasteful number, since it uses less digits than its factorization.

42693644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524784 (or 1524782 counting only the distinct ones).

The product of its digits is 124416, while the sum is 38.

The square root of 42693644 is about 6534.0373430215. The cubic root of 42693644 is about 349.5058168513.

The spelling of 42693644 in words is "forty-two million, six hundred ninety-three thousand, six hundred forty-four".