42656735 has 12 divisors (see below), whose sum is σ = 56265384. Its totient is φ = 31022640.

The previous prime is 42656711. The next prime is 42656749. The reversal of 42656735 is 53765624.

It is not a de Polignac number, because 42656735 - 2⁸ = 42656479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34649 + ... + 35858.

It is an arithmetic number, because the mean of its divisors is an integer number (4688782).

Almost surely, 2^42656735 is an apocalyptic number.

42656735 is a deficient number, since it is larger than the sum of its proper divisors (13608649).

42656735 is a wasteful number, since it uses less digits than its factorization.

42656735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70534 (or 70523 counting only the distinct ones).

The product of its digits is 151200, while the sum is 38.

The square root of 42656735 is about 6531.2123683126. The cubic root of 42656735 is about 349.4050709468.

Subtracting 42656735 from its reverse (53765624), we obtain a square (11108889 = 3333²).

The spelling of 42656735 in words is "forty-two million, six hundred fifty-six thousand, seven hundred thirty-five".