2321140 has 24 divisors (see below), whose sum is σ = 4989600. Its totient is φ = 906528.

The previous prime is 2321117. The next prime is 2321147. The reversal of 2321140 is 411232.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2321140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321147) 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, 490 + ... + 2209.

It is an arithmetic number, because the mean of its divisors is an integer number (207900).

2^2321140 is an apocalyptic number.

2321140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2321140 is an abundant number, since it is smaller than the sum of its proper divisors (2668460).

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

2321140 is a wasteful number, since it uses less digits than its factorization.

2321140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751 (or 2749 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2321140 is about 1523.5287985463. The cubic root of 2321140 is about 132.4037986880.

Adding to 2321140 its reverse (411232), we get a palindrome (2732372).

The spelling of 2321140 in words is "two million, three hundred twenty-one thousand, one hundred forty".