42668467 has 2 divisors, whose sum is σ = 42668468. Its totient is φ = 42668466.

The previous prime is 42668459. The next prime is 42668477. The reversal of 42668467 is 76486624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42668467 - 2³ = 42668459 is a prime.

It is a super-2 number, since 2×42668467² = 3641196152260178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42668407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21334233 + 21334234.

It is an arithmetic number, because the mean of its divisors is an integer number (21334234).

Almost surely, 2^42668467 is an apocalyptic number.

42668467 is a deficient number, since it is larger than the sum of its proper divisors (1).

42668467 is an equidigital number, since it uses as much as digits as its factorization.

42668467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 43.

The square root of 42668467 is about 6532.1104552817. The cubic root of 42668467 is about 349.4371006255.

The spelling of 42668467 in words is "forty-two million, six hundred sixty-eight thousand, four hundred sixty-seven".