20412276 has 12 divisors (see below), whose sum is σ = 47628672. Its totient is φ = 6804088.

The previous prime is 20412269. The next prime is 20412277. The reversal of 20412276 is 67221402.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×20412276² = 833322023000352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20412277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 850500 + ... + 850523.

It is an arithmetic number, because the mean of its divisors is an integer number (3969056).

Almost surely, 2^20412276 is an apocalyptic number.

It is an amenable number.

20412276 is an abundant number, since it is smaller than the sum of its proper divisors (27216396).

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

20412276 is a wasteful number, since it uses less digits than its factorization.

20412276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701030 (or 1701028 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 20412276 is about 4517.9946879119. The cubic root of 20412276 is about 273.2942392366.

Adding to 20412276 its reverse (67221402), we get a palindrome (87633678).

The spelling of 20412276 in words is "twenty million, four hundred twelve thousand, two hundred seventy-six".