20412312 has 32 divisors (see below), whose sum is σ = 51198000. Its totient is φ = 6781824.

The previous prime is 20412277. The next prime is 20412319. The reversal of 20412312 is 21321402.

It is a junction number, because it is equal to n+sod(n) for n = 20412291 and 20412300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20412319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7158 + ... + 9594.

Almost surely, 2^20412312 is an apocalyptic number.

It is an amenable number.

20412312 is an abundant number, since it is smaller than the sum of its proper divisors (30785688).

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

20412312 is a wasteful number, since it uses less digits than its factorization.

20412312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2795 (or 2791 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 20412312 is about 4517.9986719786. The cubic root of 20412312 is about 273.2943999011.

Adding to 20412312 its reverse (21321402), we get a palindrome (41733714).

The spelling of 20412312 in words is "twenty million, four hundred twelve thousand, three hundred twelve".