42266493 has 12 divisors (see below), whose sum is σ = 62204220. Its totient is φ = 27645696.

The previous prime is 42266461. The next prime is 42266533. The reversal of 42266493 is 39466224.

42266493 is a `hidden beast` number, since 4 + 2 + 2 + 6 + 649 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 37417689 + 4848804 = 6117^2 + 2202^2 .

It is not a de Polignac number, because 42266493 - 2⁵ = 42266461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42266443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43828 + ... + 44781.

It is an arithmetic number, because the mean of its divisors is an integer number (5183685).

Almost surely, 2^42266493 is an apocalyptic number.

It is an amenable number.

42266493 is a deficient number, since it is larger than the sum of its proper divisors (19937727).

42266493 is a wasteful number, since it uses less digits than its factorization.

42266493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88668 (or 88665 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 42266493 is about 6501.2685685180. The cubic root of 42266493 is about 348.3363029185.

The spelling of 42266493 in words is "forty-two million, two hundred sixty-six thousand, four hundred ninety-three".