20262830 has 16 divisors (see below), whose sum is σ = 41683680. Its totient is φ = 6947232.

The previous prime is 20262817. The next prime is 20262833. The reversal of 20262830 is 3826202.

It is a junction number, because it is equal to n+sod(n) for n = 20262796 and 20262805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20262833) 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, 144665 + ... + 144804.

It is an arithmetic number, because the mean of its divisors is an integer number (2605230).

Almost surely, 2^20262830 is an apocalyptic number.

20262830 is an abundant number, since it is smaller than the sum of its proper divisors (21420850).

20262830 is a wasteful number, since it uses less digits than its factorization.

20262830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289483.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 20262830 is about 4501.4253298261. The cubic root of 20262830 is about 272.6256413575.

The spelling of 20262830 in words is "twenty million, two hundred sixty-two thousand, eight hundred thirty".