20262680 has 32 divisors (see below), whose sum is σ = 46826640. Its totient is φ = 7885440.

The previous prime is 20262679. The next prime is 20262703. The reversal of 20262680 is 8626202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5366 + ... + 8325.

Almost surely, 2^20262680 is an apocalyptic number.

20262680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20262680 is an abundant number, since it is smaller than the sum of its proper divisors (26563960).

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

20262680 is a wasteful number, since it uses less digits than its factorization.

20262680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13739 (or 13735 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 20262680 is about 4501.4086684059. The cubic root of 20262680 is about 272.6249686324.

Adding to 20262680 its reverse (8626202), we get a palindrome (28888882).

The spelling of 20262680 in words is "twenty million, two hundred sixty-two thousand, six hundred eighty".