40005063 has 32 divisors (see below), whose sum is σ = 71723520. Its totient is φ = 21513600.

The previous prime is 40005059. The next prime is 40005067. The reversal of 40005063 is 36050004.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40005059) and next prime (40005067).

It is not a de Polignac number, because 40005063 - 2² = 40005059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40005067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3013 + ... + 9438.

It is an arithmetic number, because the mean of its divisors is an integer number (2241360).

Almost surely, 2^40005063 is an apocalyptic number.

40005063 is a deficient number, since it is larger than the sum of its proper divisors (31718457).

40005063 is a wasteful number, since it uses less digits than its factorization.

40005063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12484 (or 12478 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 40005063 is about 6324.9555729665. The cubic root of 40005063 is about 342.0096180736.

Adding to 40005063 its reverse (36050004), we get a palindrome (76055067).

The spelling of 40005063 in words is "forty million, five thousand, sixty-three".