40864867 has 4 divisors (see below), whose sum is σ = 40886080. Its totient is φ = 40843656.

The previous prime is 40864853. The next prime is 40864891. The reversal of 40864867 is 76846804.

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-40864867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40864897) 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, 7392 + ... + 11677.

It is an arithmetic number, because the mean of its divisors is an integer number (10221520).

Almost surely, 2^40864867 is an apocalyptic number.

40864867 is a deficient number, since it is larger than the sum of its proper divisors (21213).

40864867 is a wasteful number, since it uses less digits than its factorization.

40864867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21212.

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 40864867 is about 6392.5634138427. The cubic root of 40864867 is about 344.4424713457.

The spelling of 40864867 in words is "forty million, eight hundred sixty-four thousand, eight hundred sixty-seven".