2018212920 has 96 divisors (see below), whose sum is σ = 6579396720. Its totient is φ = 536532480.

The previous prime is 2018212909. The next prime is 2018212951. The reversal of 2018212920 is 292128102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110692 + ... + 127628.

Almost surely, 2^2018212920 is an apocalyptic number.

2018212920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2018212920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3289698360).

2018212920 is an abundant number, since it is smaller than the sum of its proper divisors (4561183800).

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

2018212920 is a wasteful number, since it uses less digits than its factorization.

2018212920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17285 (or 17278 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 2018212920 is about 44924.5247053322. The cubic root of 2018212920 is about 1263.7339726825.

The spelling of 2018212920 in words is "two billion, eighteen million, two hundred twelve thousand, nine hundred twenty".