20239120 has 80 divisors (see below), whose sum is σ = 52050240. Its totient is φ = 7257600.

The previous prime is 20239099. The next prime is 20239127. The reversal of 20239120 is 2193202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (20239127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95815 + ... + 96025.

It is an arithmetic number, because the mean of its divisors is an integer number (650628).

Almost surely, 2^20239120 is an apocalyptic number.

20239120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20239120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26025120).

20239120 is an abundant number, since it is smaller than the sum of its proper divisors (31811120).

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

20239120 is a wasteful number, since it uses less digits than its factorization.

20239120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 20239120 is about 4498.7909486883. The cubic root of 20239120 is about 272.5192646931.

The spelling of 20239120 in words is "twenty million, two hundred thirty-nine thousand, one hundred twenty".