40012763 has 6 divisors (see below), whose sum is σ = 46545516. Its totient is φ = 34296612.

The previous prime is 40012759. The next prime is 40012769. The reversal of 40012763 is 36721004.

It is not a de Polignac number, because 40012763 - 2² = 40012759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40012769) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 408245 + ... + 408342.

It is an arithmetic number, because the mean of its divisors is an integer number (7757586).

Almost surely, 2^40012763 is an apocalyptic number.

40012763 is a deficient number, since it is larger than the sum of its proper divisors (6532753).

40012763 is an equidigital number, since it uses as much as digits as its factorization.

40012763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816601 (or 816594 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 40012763 is about 6325.5642436070. The cubic root of 40012763 is about 342.0315595057.

Adding to 40012763 its reverse (36721004), we get a palindrome (76733767).

The spelling of 40012763 in words is "forty million, twelve thousand, seven hundred sixty-three".