20254260 has 96 divisors (see below), whose sum is σ = 63786240. Its totient is φ = 4764672.

The previous prime is 20254249. The next prime is 20254277. The reversal of 20254260 is 6245202.

20254260 = 236² + 237² + ... + 419².

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 17376 + ... + 18504.

It is an arithmetic number, because the mean of its divisors is an integer number (664440).

Almost surely, 2^20254260 is an apocalyptic number.

20254260 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 20254260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31893120).

20254260 is an abundant number, since it is smaller than the sum of its proper divisors (43531980).

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

20254260 is a wasteful number, since it uses less digits than its factorization.

20254260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177 (or 1175 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 20254260 is about 4500.4733084421. The cubic root of 20254260 is about 272.5872010013.

Adding to 20254260 its reverse (6245202), we get a palindrome (26499462).

The spelling of 20254260 in words is "twenty million, two hundred fifty-four thousand, two hundred sixty".