40080012 has 48 divisors (see below), whose sum is σ = 108003840. Its totient is φ = 11331072.

The previous prime is 40080011. The next prime is 40080041. The reversal of 40080012 is 21008004.

It is a junction number, because it is equal to n+sod(n) for n = 40079973 and 40080000.

It is not an unprimeable number, because it can be changed into a prime (40080011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5689 + ... + 10607.

It is an arithmetic number, because the mean of its divisors is an integer number (2250080).

Almost surely, 2^40080012 is an apocalyptic number.

40080012 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40080012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54001920).

40080012 is an abundant number, since it is smaller than the sum of its proper divisors (67923828).

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

40080012 is a wasteful number, since it uses less digits than its factorization.

40080012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5030 (or 5028 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 40080012 is about 6330.8776642737. The cubic root of 40080012 is about 342.2230684530.

Adding to 40080012 its reverse (21008004), we get a palindrome (61088016).

The spelling of 40080012 in words is "forty million, eighty thousand, twelve".