20114280 has 96 divisors (see below), whose sum is σ = 66549600. Its totient is φ = 5267328.

The previous prime is 20114249. The next prime is 20114287. The reversal of 20114280 is 8241102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20114287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20767 + ... + 21713.

It is an arithmetic number, because the mean of its divisors is an integer number (693225).

Almost surely, 2^20114280 is an apocalyptic number.

20114280 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 20114280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33274800).

20114280 is an abundant number, since it is smaller than the sum of its proper divisors (46435320).

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

20114280 is a wasteful number, since it uses less digits than its factorization.

20114280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023 (or 1016 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 20114280 is about 4484.8946475921. The cubic root of 20114280 is about 271.9577861247.

Adding to 20114280 its reverse (8241102), we get a palindrome (28355382).

The spelling of 20114280 in words is "twenty million, one hundred fourteen thousand, two hundred eighty".