42660733 has 2 divisors, whose sum is σ = 42660734. Its totient is φ = 42660732.

The previous prime is 42660727. The next prime is 42660749. The reversal of 42660733 is 33706624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30008484 + 12652249 = 5478^2 + 3557^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42660733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42660695 and 42660704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42664733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21330366 + 21330367.

It is an arithmetic number, because the mean of its divisors is an integer number (21330367).

Almost surely, 2^42660733 is an apocalyptic number.

It is an amenable number.

42660733 is a deficient number, since it is larger than the sum of its proper divisors (1).

42660733 is an equidigital number, since it uses as much as digits as its factorization.

42660733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 31.

The square root of 42660733 is about 6531.5184298906. The cubic root of 42660733 is about 349.4159865958.

The spelling of 42660733 in words is "forty-two million, six hundred sixty thousand, seven hundred thirty-three".