40990867 has 4 divisors (see below), whose sum is σ = 41367040. Its totient is φ = 40614696.

The previous prime is 40990849. The next prime is 40990871. The reversal of 40990867 is 76809904.

40990867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40990867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40990877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187923 + ... + 188140.

It is an arithmetic number, because the mean of its divisors is an integer number (10341760).

Almost surely, 2^40990867 is an apocalyptic number.

40990867 is a deficient number, since it is larger than the sum of its proper divisors (376173).

40990867 is a wasteful number, since it uses less digits than its factorization.

40990867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376172.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 40990867 is about 6402.4110302292. The cubic root of 40990867 is about 344.7961184230.

The spelling of 40990867 in words is "forty million, nine hundred ninety thousand, eight hundred sixty-seven".