42746269 has 2 divisors, whose sum is σ = 42746270. Its totient is φ = 42746268.

The previous prime is 42746191. The next prime is 42746287. The reversal of 42746269 is 96264724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40170244 + 2576025 = 6338^2 + 1605^2 .

It is a cyclic number.

It is not a de Polignac number, because 42746269 - 2⁷ = 42746141 is a prime.

It is a super-2 number, since 2×42746269² = 3654487026840722, 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 (42746069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21373134 + 21373135.

It is an arithmetic number, because the mean of its divisors is an integer number (21373135).

Almost surely, 2^42746269 is an apocalyptic number.

It is an amenable number.

42746269 is a deficient number, since it is larger than the sum of its proper divisors (1).

42746269 is an equidigital number, since it uses as much as digits as its factorization.

42746269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 40.

The square root of 42746269 is about 6538.0630923845. The cubic root of 42746269 is about 349.6493604016.

The spelling of 42746269 in words is "forty-two million, seven hundred forty-six thousand, two hundred sixty-nine".