20996412 has 12 divisors (see below), whose sum is σ = 48991656. Its totient is φ = 6998800.

The previous prime is 20996407. The next prime is 20996413. The reversal of 20996412 is 21469902.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20996413) 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, 874839 + ... + 874862.

It is an arithmetic number, because the mean of its divisors is an integer number (4082638).

Almost surely, 2^20996412 is an apocalyptic number.

It is an amenable number.

20996412 is an abundant number, since it is smaller than the sum of its proper divisors (27995244).

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

20996412 is a wasteful number, since it uses less digits than its factorization.

20996412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749708 (or 1749706 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 20996412 is about 4582.1841953374. The cubic root of 20996412 is about 275.8767040131.

The spelling of 20996412 in words is "twenty million, nine hundred ninety-six thousand, four hundred twelve".