40404867 has 4 divisors (see below), whose sum is σ = 53873160. Its totient is φ = 26936576.

The previous prime is 40404863. The next prime is 40404899. The reversal of 40404867 is 76840404.

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

It is a cyclic number.

It is not a de Polignac number, because 40404867 - 2² = 40404863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40404863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6734142 + ... + 6734147.

It is an arithmetic number, because the mean of its divisors is an integer number (13468290).

Almost surely, 2^40404867 is an apocalyptic number.

40404867 is a deficient number, since it is larger than the sum of its proper divisors (13468293).

40404867 is a wasteful number, since it uses less digits than its factorization.

40404867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13468292.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 40404867 is about 6356.4822818915. The cubic root of 40404867 is about 343.1451728181.

The spelling of 40404867 in words is "forty million, four hundred four thousand, eight hundred sixty-seven".