20182830 has 32 divisors (see below), whose sum is σ = 48925728. Its totient is φ = 5328000.

The previous prime is 20182819. The next prime is 20182831. The reversal of 20182830 is 3828102.

It is a self number, because there is not a number n which added to its sum of digits gives 20182830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20182831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301 + ... + 6360.

It is an arithmetic number, because the mean of its divisors is an integer number (1528929).

Almost surely, 2^20182830 is an apocalyptic number.

20182830 is an abundant number, since it is smaller than the sum of its proper divisors (28742898).

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

20182830 is a wasteful number, since it uses less digits than its factorization.

20182830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6772.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 20182830 is about 4492.5304673424. The cubic root of 20182830 is about 272.2663822724.

It can be divided in two parts, 20182 and 830, that added together give a palindrome (21012).

The spelling of 20182830 in words is "twenty million, one hundred eighty-two thousand, eight hundred thirty".