20463912 has 96 divisors (see below), whose sum is σ = 66705600. Its totient is φ = 5536512.

The previous prime is 20463907. The next prime is 20463953. The reversal of 20463912 is 21936402.

20463912 is a `hidden beast` number, since 20 + 4 + 639 + 1 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8508 + ... + 10644.

It is an arithmetic number, because the mean of its divisors is an integer number (694850).

Almost surely, 2^20463912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20463912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33352800).

20463912 is an abundant number, since it is smaller than the sum of its proper divisors (46241688).

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

20463912 is a wasteful number, since it uses less digits than its factorization.

20463912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2175 (or 2168 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 20463912 is about 4523.7055607102. The cubic root of 20463912 is about 273.5244918337.

The spelling of 20463912 in words is "twenty million, four hundred sixty-three thousand, nine hundred twelve".