40402667 has 2 divisors, whose sum is σ = 40402668. Its totient is φ = 40402666.

The previous prime is 40402643. The next prime is 40402709. The reversal of 40402667 is 76620404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40402667 - 2⁶ = 40402603 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40402067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20201333 + 20201334.

It is an arithmetic number, because the mean of its divisors is an integer number (20201334).

Almost surely, 2^40402667 is an apocalyptic number.

40402667 is a deficient number, since it is larger than the sum of its proper divisors (1).

40402667 is an equidigital number, since it uses as much as digits as its factorization.

40402667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 40402667 is about 6356.3092278460. The cubic root of 40402667 is about 343.1389447475.

The spelling of 40402667 in words is "forty million, four hundred two thousand, six hundred sixty-seven".