2802280 has 64 divisors (see below), whose sum is σ = 7212240. Its totient is φ = 970752.

The previous prime is 2802277. The next prime is 2802301. The reversal of 2802280 is 822082.

It can be written as a sum of positive squares in 8 ways, for example, as 412164 + 2390116 = 642^2 + 1546^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8682 + ... + 8998.

2^2802280 is an apocalyptic number.

2802280 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 2802280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3606120).

2802280 is an abundant number, since it is smaller than the sum of its proper divisors (4409960).

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

2802280 is a wasteful number, since it uses less digits than its factorization.

2802280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 2802280 is about 1674.0011947427. The cubic root of 2802280 is about 140.9842210266.

The spelling of 2802280 in words is "two million, eight hundred two thousand, two hundred eighty".