2440311321 has 8 divisors (see below), whose sum is σ = 3718569664. Its totient is φ = 1394463600.

The previous prime is 2440311317. The next prime is 2440311347. The reversal of 2440311321 is 1231130442.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2440311321 - 2² = 2440311317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 116205301 = 2440311321 / (2 + 4 + 4 + 0 + 3 + 1 + 1 + 3 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2440311301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58102630 + ... + 58102671.

It is an arithmetic number, because the mean of its divisors is an integer number (464821208).

Almost surely, 2^2440311321 is an apocalyptic number.

2440311321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2440311321 is a deficient number, since it is larger than the sum of its proper divisors (1278258343).

2440311321 is a wasteful number, since it uses less digits than its factorization.

2440311321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116205311.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2440311321 is about 49399.5072951138. The cubic root of 2440311321 is about 1346.3203538452.

Adding to 2440311321 its reverse (1231130442), we get a palindrome (3671441763).

The spelling of 2440311321 in words is "two billion, four hundred forty million, three hundred eleven thousand, three hundred twenty-one".