40667699 has 8 divisors (see below), whose sum is σ = 42298560. Its totient is φ = 39064896.

The previous prime is 40667687. The next prime is 40667717. The reversal of 40667699 is 99676604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40667699 - 2¹² = 40663603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40667639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4034 + ... + 9879.

It is an arithmetic number, because the mean of its divisors is an integer number (5287320).

Almost surely, 2^40667699 is an apocalyptic number.

40667699 is a deficient number, since it is larger than the sum of its proper divisors (1630861).

40667699 is a wasteful number, since it uses less digits than its factorization.

40667699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14029.

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 40667699 is about 6377.1230974476. The cubic root of 40667699 is about 343.8876137061.

The spelling of 40667699 in words is "forty million, six hundred sixty-seven thousand, six hundred ninety-nine".