20340260 has 24 divisors (see below), whose sum is σ = 44963520. Its totient is φ = 7707744.

The previous prime is 20340251. The next prime is 20340263. The reversal of 20340260 is 6204302.

It is not an unprimeable number, because it can be changed into a prime (20340263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26384 + ... + 27143.

It is an arithmetic number, because the mean of its divisors is an integer number (1873480).

Almost surely, 2^20340260 is an apocalyptic number.

20340260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20340260 is an abundant number, since it is smaller than the sum of its proper divisors (24623260).

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

20340260 is a wasteful number, since it uses less digits than its factorization.

20340260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53555 (or 53553 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 20340260 is about 4510.0177383243. The cubic root of 20340260 is about 272.9724598427.

Adding to 20340260 its reverse (6204302), we get a palindrome (26544562).

The spelling of 20340260 in words is "twenty million, three hundred forty thousand, two hundred sixty".