40106667 has 4 divisors (see below), whose sum is σ = 53475560. Its totient is φ = 26737776.

The previous prime is 40106629. The next prime is 40106683. The reversal of 40106667 is 76660104.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40106667 - 2¹⁰ = 40105643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40106767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6684442 + ... + 6684447.

It is an arithmetic number, because the mean of its divisors is an integer number (13368890).

Almost surely, 2^40106667 is an apocalyptic number.

40106667 is a deficient number, since it is larger than the sum of its proper divisors (13368893).

40106667 is a wasteful number, since it uses less digits than its factorization.

40106667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13368892.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 40106667 is about 6332.9824727375. The cubic root of 40106667 is about 342.2989161887.

The spelling of 40106667 in words is "forty million, one hundred six thousand, six hundred sixty-seven".