40103663 has 12 divisors (see below), whose sum is σ = 42881760. Its totient is φ = 37496832.

The previous prime is 40103659. The next prime is 40103681. The reversal of 40103663 is 36630104.

It is not a de Polignac number, because 40103663 - 2² = 40103659 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 (40103603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55418 + ... + 56136.

It is an arithmetic number, because the mean of its divisors is an integer number (3573480).

Almost surely, 2^40103663 is an apocalyptic number.

40103663 is a deficient number, since it is larger than the sum of its proper divisors (2778097).

40103663 is a wasteful number, since it uses less digits than its factorization.

40103663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 40103663 is about 6332.7452972625. The cubic root of 40103663 is about 342.2903698821.

Adding to 40103663 its reverse (36630104), we get a palindrome (76733767).

The spelling of 40103663 in words is "forty million, one hundred three thousand, six hundred sixty-three".