2813888620 has 24 divisors (see below), whose sum is σ = 6256764864. Its totient is φ = 1059346176.

The previous prime is 2813888557. The next prime is 2813888629. The reversal of 2813888620 is 268883182.

It is a happy number.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2813888629) 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, 4137732 + ... + 4138411.

It is an arithmetic number, because the mean of its divisors is an integer number (260698536).

Almost surely, 2^2813888620 is an apocalyptic number.

2813888620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2813888620 is an abundant number, since it is smaller than the sum of its proper divisors (3442876244).

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

2813888620 is a wasteful number, since it uses less digits than its factorization.

2813888620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8276169 (or 8276167 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 46.

The square root of 2813888620 is about 53046.0990083154. The cubic root of 2813888620 is about 1411.7863146904.

The spelling of 2813888620 in words is "two billion, eight hundred thirteen million, eight hundred eighty-eight thousand, six hundred twenty".