2549280 has 96 divisors (see below), whose sum is σ = 8273664. Its totient is φ = 659456.

The previous prime is 2549279. The next prime is 2549291. The reversal of 2549280 is 829452.

It is a tau number, because it is divible by the number of its divisors (96).

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

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, 22504 + ... + 22616.

It is an arithmetic number, because the mean of its divisors is an integer number (86184).

2^2549280 is an apocalyptic number.

2549280 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 2549280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4136832).

2549280 is an abundant number, since it is smaller than the sum of its proper divisors (5724384).

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

2549280 is a wasteful number, since it uses less digits than its factorization.

2549280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 2549280 is about 1596.6464856066. The cubic root of 2549280 is about 136.6068612677.

The spelling of 2549280 in words is "two million, five hundred forty-nine thousand, two hundred eighty".