40412663 has 4 divisors (see below), whose sum is σ = 40429488. Its totient is φ = 40395840.

The previous prime is 40412609. The next prime is 40412681. The reversal of 40412663 is 36621404.

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 40412663 - 2⁶ = 40412599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40412263) 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, 4058 + ... + 9863.

It is an arithmetic number, because the mean of its divisors is an integer number (10107372).

Almost surely, 2^40412663 is an apocalyptic number.

40412663 is a deficient number, since it is larger than the sum of its proper divisors (16825).

40412663 is a wasteful number, since it uses less digits than its factorization.

40412663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16824.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 40412663 is about 6357.0954845747. The cubic root of 40412663 is about 343.1672410154.

The spelling of 40412663 in words is "forty million, four hundred twelve thousand, six hundred sixty-three".