20119872 has 56 divisors (see below), whose sum is σ = 54494176. Its totient is φ = 6547968.

The previous prime is 20119867. The next prime is 20119873. The reversal of 20119872 is 27891102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20119873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7038 + ... + 9474.

Almost surely, 2^20119872 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 20119872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27247088).

20119872 is an abundant number, since it is smaller than the sum of its proper divisors (34374304).

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

20119872 is a wasteful number, since it uses less digits than its factorization.

20119872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2495 (or 2485 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 20119872 is about 4485.5180302837. The cubic root of 20119872 is about 271.9829862484.

The spelling of 20119872 in words is "twenty million, one hundred nineteen thousand, eight hundred seventy-two".