2821890412 has 24 divisors (see below), whose sum is σ = 5670786240. Its totient is φ = 1215167760.

The previous prime is 2821890397. The next prime is 2821890419. The reversal of 2821890412 is 2140981282.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2821890419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1686898 + ... + 1688569.

It is an arithmetic number, because the mean of its divisors is an integer number (236282760).

Almost surely, 2^2821890412 is an apocalyptic number.

2821890412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2821890412 is an abundant number, since it is smaller than the sum of its proper divisors (2848895828).

2821890412 is a wasteful number, since it uses less digits than its factorization.

2821890412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3375501 (or 3375499 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 2821890412 is about 53121.4684661484. The cubic root of 2821890412 is about 1413.1232699003.

The spelling of 2821890412 in words is "two billion, eight hundred twenty-one million, eight hundred ninety thousand, four hundred twelve".