42594644 has 12 divisors (see below), whose sum is σ = 74610144. Its totient is φ = 21277464.

The previous prime is 42594641. The next prime is 42594677. The reversal of 42594644 is 44649524.

It is a junction number, because it is equal to n+sod(n) for n = 42594598 and 42594607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42594641) 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, 539 + ... + 9245.

It is an arithmetic number, because the mean of its divisors is an integer number (6217512).

Almost surely, 2^42594644 is an apocalyptic number.

It is an amenable number.

42594644 is a deficient number, since it is larger than the sum of its proper divisors (32015500).

42594644 is a wasteful number, since it uses less digits than its factorization.

42594644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9934 (or 9932 counting only the distinct ones).

The product of its digits is 138240, while the sum is 38.

The square root of 42594644 is about 6526.4572319138. The cubic root of 42594644 is about 349.2354576753.

The spelling of 42594644 in words is "forty-two million, five hundred ninety-four thousand, six hundred forty-four".