42682279 has 2 divisors, whose sum is σ = 42682280. Its totient is φ = 42682278.

The previous prime is 42682219. The next prime is 42682307. The reversal of 42682279 is 97228624.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42682279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42682219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21341139 + 21341140.

It is an arithmetic number, because the mean of its divisors is an integer number (21341140).

Almost surely, 2^42682279 is an apocalyptic number.

42682279 is a deficient number, since it is larger than the sum of its proper divisors (1).

42682279 is an equidigital number, since it uses as much as digits as its factorization.

42682279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 40.

The square root of 42682279 is about 6533.1676084423. The cubic root of 42682279 is about 349.4748014140.

The spelling of 42682279 in words is "forty-two million, six hundred eighty-two thousand, two hundred seventy-nine".