2277440 has 56 divisors (see below), whose sum is σ = 5925312. Its totient is φ = 826880.

The previous prime is 2277413. The next prime is 2277469. The reversal of 2277440 is 447722.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3197 + ... + 3843.

2^2277440 is an apocalyptic number.

2277440 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 2277440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2962656).

2277440 is an abundant number, since it is smaller than the sum of its proper divisors (3647872).

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

2277440 is a wasteful number, since it uses less digits than its factorization.

2277440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675 (or 665 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 2277440 is about 1509.1189482609. The cubic root of 2277440 is about 131.5676087352.

It can be divided in two parts, 227 and 7440, that added together give a palindrome (7667).

The spelling of 2277440 in words is "two million, two hundred seventy-seven thousand, four hundred forty".