42656733 has 16 divisors (see below), whose sum is σ = 72223360. Its totient is φ = 24375168.

The previous prime is 42656711. The next prime is 42656749. The reversal of 42656733 is 33765624.

It is not a de Polignac number, because 42656733 - 2²¹ = 40559581 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42656753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112660 + ... + 113037.

It is an arithmetic number, because the mean of its divisors is an integer number (4513960).

Almost surely, 2^42656733 is an apocalyptic number.

It is an amenable number.

42656733 is a deficient number, since it is larger than the sum of its proper divisors (29566627).

42656733 is a wasteful number, since it uses less digits than its factorization.

42656733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225713 (or 225707 counting only the distinct ones).

The product of its digits is 90720, while the sum is 36.

The square root of 42656733 is about 6531.2122152017. The cubic root of 42656733 is about 349.4050654861.

The spelling of 42656733 in words is "forty-two million, six hundred fifty-six thousand, seven hundred thirty-three".