42294869 has 2 divisors, whose sum is σ = 42294870. Its totient is φ = 42294868.

The previous prime is 42294851. The next prime is 42294911. The reversal of 42294869 is 96849224.

It is a happy number.

42294869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32604100 + 9690769 = 5710^2 + 3113^2 .

It is a cyclic number.

It is not a de Polignac number, because 42294869 - 2⁸ = 42294613 is a prime.

It is a super-2 number, since 2×42294869² = 3577711887454322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42294809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21147434 + 21147435.

It is an arithmetic number, because the mean of its divisors is an integer number (21147435).

Almost surely, 2^42294869 is an apocalyptic number.

It is an amenable number.

42294869 is a deficient number, since it is larger than the sum of its proper divisors (1).

42294869 is an equidigital number, since it uses as much as digits as its factorization.

42294869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 44.

The square root of 42294869 is about 6503.4505456719. The cubic root of 42294869 is about 348.4142384104.

The spelling of 42294869 in words is "forty-two million, two hundred ninety-four thousand, eight hundred sixty-nine".