2297280 has 56 divisors (see below), whose sum is σ = 7296912. Its totient is φ = 612352.

The previous prime is 2297257. The next prime is 2297291. The reversal of 2297280 is 827922.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237 + ... + 2156.

It is an arithmetic number, because the mean of its divisors is an integer number (130302).

2^2297280 is an apocalyptic number.

2297280 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 2297280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3648456).

2297280 is an abundant number, since it is smaller than the sum of its proper divisors (4999632).

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

2297280 is a wasteful number, since it uses less digits than its factorization.

2297280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413 (or 2403 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 2297280 is about 1515.6780660813. The cubic root of 2297280 is about 131.9485566298.

The spelling of 2297280 in words is "two million, two hundred ninety-seven thousand, two hundred eighty".