2798969220 has 288 divisors, whose sum is σ = 9142398720. Its totient is φ = 691891200.

The previous prime is 2798969219. The next prime is 2798969221. The reversal of 2798969220 is 229698972.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2798969219) and next prime (2798969221).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2798969221) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18536145 + ... + 18536295.

It is an arithmetic number, because the mean of its divisors is an integer number (31744440).

Almost surely, 2^2798969220 is an apocalyptic number.

2798969220 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 2798969220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4571199360).

2798969220 is an abundant number, since it is smaller than the sum of its proper divisors (6343429500).

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

2798969220 is a wasteful number, since it uses less digits than its factorization.

2798969220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 2798969220 is about 52905.2853692332. The cubic root of 2798969220 is about 1409.2867676945.

The spelling of 2798969220 in words is "two billion, seven hundred ninety-eight million, nine hundred sixty-nine thousand, two hundred twenty".