40200012 has 36 divisors (see below), whose sum is σ = 103983880. Its totient is φ = 13087872.

The previous prime is 40199983. The next prime is 40200071. The reversal of 40200012 is 21000204.

40200012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 40199967 and 40200003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11437 + ... + 14532.

Almost surely, 2^40200012 is an apocalyptic number.

It is an amenable number.

40200012 is an abundant number, since it is smaller than the sum of its proper divisors (63783868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40200012 is a wasteful number, since it uses less digits than its factorization.

40200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26022 (or 26017 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 40200012 is about 6340.3479399793. The cubic root of 40200012 is about 342.5642680470.

Adding to 40200012 its reverse (21000204), we get a palindrome (61200216).

The spelling of 40200012 in words is "forty million, two hundred thousand, twelve".