42284273 has 2 divisors, whose sum is σ = 42284274. Its totient is φ = 42284272.

The previous prime is 42284251. The next prime is 42284293. The reversal of 42284273 is 37248224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40233649 + 2050624 = 6343^2 + 1432^2 .

It is a cyclic number.

It is not a de Polignac number, because 42284273 - 2⁸ = 42284017 is a prime.

It is not a weakly prime, because it can be changed into another prime (42284293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21142136 + 21142137.

It is an arithmetic number, because the mean of its divisors is an integer number (21142137).

Almost surely, 2^42284273 is an apocalyptic number.

It is an amenable number.

42284273 is a deficient number, since it is larger than the sum of its proper divisors (1).

42284273 is an equidigital number, since it uses as much as digits as its factorization.

42284273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 32.

The square root of 42284273 is about 6502.6358501764. The cubic root of 42284273 is about 348.3851402739.

The spelling of 42284273 in words is "forty-two million, two hundred eighty-four thousand, two hundred seventy-three".