40999867 has 8 divisors (see below), whose sum is σ = 41860080. Its totient is φ = 40145280.

The previous prime is 40999843. The next prime is 40999921. The reversal of 40999867 is 76899904.

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

It is a cyclic number.

It is not a de Polignac number, because 40999867 - 2¹⁹ = 40475579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40999817) 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, 15343 + ... + 17815.

It is an arithmetic number, because the mean of its divisors is an integer number (5232510).

Almost surely, 2^40999867 is an apocalyptic number.

40999867 is a deficient number, since it is larger than the sum of its proper divisors (860213).

40999867 is a wasteful number, since it uses less digits than its factorization.

40999867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813.

The product of its (nonzero) digits is 979776, while the sum is 52.

The square root of 40999867 is about 6403.1138518693. The cubic root of 40999867 is about 344.8213511819.

The spelling of 40999867 in words is "forty million, nine hundred ninety-nine thousand, eight hundred sixty-seven".