2913640 has 32 divisors (see below), whose sum is σ = 6842880. Its totient is φ = 1114432.

The previous prime is 2913619. The next prime is 2913641. The reversal of 2913640 is 463192.

2913640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2913641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 664 + ... + 2503.

It is an arithmetic number, because the mean of its divisors is an integer number (213840).

2^2913640 is an apocalyptic number.

2913640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2913640 is an abundant number, since it is smaller than the sum of its proper divisors (3929240).

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

2913640 is a wasteful number, since it uses less digits than its factorization.

2913640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3201 (or 3197 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2913640 is about 1706.9387803902. The cubic root of 2913640 is about 142.8275424386.

It can be divided in two parts, 2913 and 640, that added together give a palindrome (3553).

The spelling of 2913640 in words is "two million, nine hundred thirteen thousand, six hundred forty".