2102017830 has 64 divisors (see below), whose sum is σ = 5509202688. Its totient is φ = 509048960.

The previous prime is 2102017829. The next prime is 2102017843. The reversal of 2102017830 is 387102012.

2102017830 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2102017830.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381052 + ... + 386528.

It is an arithmetic number, because the mean of its divisors is an integer number (86081292).

Almost surely, 2^2102017830 is an apocalyptic number.

2102017830 is an abundant number, since it is smaller than the sum of its proper divisors (3407184858).

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

2102017830 is a wasteful number, since it uses less digits than its factorization.

2102017830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6661.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 2102017830 is about 45847.7679936548. The cubic root of 2102017830 is about 1280.9891909986.

Adding to 2102017830 its reverse (387102012), we get a palindrome (2489119842).

The spelling of 2102017830 in words is "two billion, one hundred two million, seventeen thousand, eight hundred thirty".