2663340 has 24 divisors (see below), whose sum is σ = 7457520. Its totient is φ = 710208.

The previous prime is 2663299. The next prime is 2663347. The reversal of 2663340 is 433662.

It is a self number, because there is not a number n which added to its sum of digits gives 2663340.

It is not an unprimeable number, because it can be changed into a prime (2663347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22135 + ... + 22254.

It is an arithmetic number, because the mean of its divisors is an integer number (310730).

2^2663340 is an apocalyptic number.

2663340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2663340 is an abundant number, since it is smaller than the sum of its proper divisors (4794180).

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

2663340 is a wasteful number, since it uses less digits than its factorization.

2663340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44401 (or 44399 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 2663340 is about 1631.9742645030. The cubic root of 2663340 is about 138.6145663287.

It can be divided in two parts, 2663 and 340, that added together give a palindrome (3003).

The spelling of 2663340 in words is "two million, six hundred sixty-three thousand, three hundred forty".