40267663 has 4 divisors (see below), whose sum is σ = 40624128. Its totient is φ = 39911200.

The previous prime is 40267657. The next prime is 40267681. The reversal of 40267663 is 36676204.

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 40267663 - 2⁹ = 40267151 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 (40267693) 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, 178063 + ... + 178288.

It is an arithmetic number, because the mean of its divisors is an integer number (10156032).

Almost surely, 2^40267663 is an apocalyptic number.

40267663 is a deficient number, since it is larger than the sum of its proper divisors (356465).

40267663 is a wasteful number, since it uses less digits than its factorization.

40267663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356464.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 40267663 is about 6345.6806569508. The cubic root of 40267663 is about 342.7563229436.

The spelling of 40267663 in words is "forty million, two hundred sixty-seven thousand, six hundred sixty-three".