2867280 has 80 divisors (see below), whose sum is σ = 9582720. Its totient is φ = 705024.

The previous prime is 2867269. The next prime is 2867281. The reversal of 2867280 is 827682.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2867281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2661 + ... + 3579.

It is an arithmetic number, because the mean of its divisors is an integer number (119784).

2^2867280 is an apocalyptic number.

2867280 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 2867280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4791360).

2867280 is an abundant number, since it is smaller than the sum of its proper divisors (6715440).

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

2867280 is a wasteful number, since it uses less digits than its factorization.

2867280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948 (or 942 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 2867280 is about 1693.3044616961. The cubic root of 2867280 is about 142.0659615522.

The spelling of 2867280 in words is "two million, eight hundred sixty-seven thousand, two hundred eighty".