42766313 has 2 divisors, whose sum is σ = 42766314. Its totient is φ = 42766312.

The previous prime is 42766309. The next prime is 42766333. The reversal of 42766313 is 31366724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25684624 + 17081689 = 5068^2 + 4133^2 .

It is a cyclic number.

It is not a de Polignac number, because 42766313 - 2² = 42766309 is a prime.

It is a super-2 number, since 2×42766313² = 3657915055227938, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42766313.

It is not a weakly prime, because it can be changed into another prime (42766333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21383156 + 21383157.

It is an arithmetic number, because the mean of its divisors is an integer number (21383157).

Almost surely, 2^42766313 is an apocalyptic number.

It is an amenable number.

42766313 is a deficient number, since it is larger than the sum of its proper divisors (1).

42766313 is an equidigital number, since it uses as much as digits as its factorization.

42766313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 32.

The square root of 42766313 is about 6539.5957826153. The cubic root of 42766313 is about 349.7040028051.

The spelling of 42766313 in words is "forty-two million, seven hundred sixty-six thousand, three hundred thirteen".