2440280 has 16 divisors (see below), whose sum is σ = 5490720. Its totient is φ = 976096.

The previous prime is 2440271. The next prime is 2440297. The reversal of 2440280 is 820442.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30464 + ... + 30543.

It is an arithmetic number, because the mean of its divisors is an integer number (343170).

2^2440280 is an apocalyptic number.

2440280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2440280 is an abundant number, since it is smaller than the sum of its proper divisors (3050440).

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

2440280 is a wasteful number, since it uses less digits than its factorization.

2440280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61018 (or 61014 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2440280 is about 1562.1395584262. The cubic root of 2440280 is about 134.6314593886.

It can be divided in two parts, 24 and 40280, that added together give a palindrome (40304).

The spelling of 2440280 in words is "two million, four hundred forty thousand, two hundred eighty".