20396112 has 40 divisors (see below), whose sum is σ = 57481440. Its totient is φ = 6180480.

The previous prime is 20396087. The next prime is 20396113. The reversal of 20396112 is 21169302.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20396113) 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 7 ways as a sum of consecutive naturals, for example, 18787 + ... + 19842.

It is an arithmetic number, because the mean of its divisors is an integer number (1437036).

Almost surely, 2^20396112 is an apocalyptic number.

20396112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20396112 is an abundant number, since it is smaller than the sum of its proper divisors (37085328).

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

20396112 is a wasteful number, since it uses less digits than its factorization.

20396112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38651 (or 38645 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 20396112 is about 4516.2054869104. The cubic root of 20396112 is about 273.2220817655. Note that the first 3 decimals are identical.

The spelling of 20396112 in words is "twenty million, three hundred ninety-six thousand, one hundred twelve".