40310012 has 12 divisors (see below), whose sum is σ = 70795536. Its totient is φ = 20082720.

The previous prime is 40309993. The next prime is 40310027. The reversal of 40310012 is 21001304.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40309975 and 40310002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16808 + ... + 19055.

It is an arithmetic number, because the mean of its divisors is an integer number (5899628).

Almost surely, 2^40310012 is an apocalyptic number.

It is an amenable number.

40310012 is a deficient number, since it is larger than the sum of its proper divisors (30485524).

40310012 is a wasteful number, since it uses less digits than its factorization.

40310012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36148 (or 36146 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 40310012 is about 6349.0166167683. The cubic root of 40310012 is about 342.8764383651.

Adding to 40310012 its reverse (21001304), we get a palindrome (61311316).

The spelling of 40310012 in words is "forty million, three hundred ten thousand, twelve".