2312240 has 40 divisors (see below), whose sum is σ = 6145440. Its totient is φ = 792576.

The previous prime is 2312209. The next prime is 2312249. The reversal of 2312240 is 422132.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (2312249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1505 + ... + 2624.

It is an arithmetic number, because the mean of its divisors is an integer number (153636).

2^2312240 is an apocalyptic number.

2312240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2312240 is an abundant number, since it is smaller than the sum of its proper divisors (3833200).

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

2312240 is a wasteful number, since it uses less digits than its factorization.

2312240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4149 (or 4143 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2312240 is about 1520.6051426981. The cubic root of 2312240 is about 132.2343556358.

Adding to 2312240 its reverse (422132), we get a palindrome (2734372).

It can be divided in two parts, 2312 and 240, that added together give a palindrome (2552).

The spelling of 2312240 in words is "two million, three hundred twelve thousand, two hundred forty".