40407663 has 16 divisors (see below), whose sum is σ = 57122816. Its totient is φ = 25362720.

The previous prime is 40407641. The next prime is 40407667. The reversal of 40407663 is 36670404.

40407663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40407663 - 2⁸ = 40407407 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40407663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40407667) 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 15 ways as a sum of consecutive naturals, for example, 2431 + ... + 9312.

It is an arithmetic number, because the mean of its divisors is an integer number (3570176).

Almost surely, 2^40407663 is an apocalyptic number.

40407663 is a deficient number, since it is larger than the sum of its proper divisors (16715153).

40407663 is a wasteful number, since it uses less digits than its factorization.

40407663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11814.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 40407663 is about 6356.7022110525. The cubic root of 40407663 is about 343.1530878033.

The spelling of 40407663 in words is "forty million, four hundred seven thousand, six hundred sixty-three".