2243320401 has 24 divisors (see below), whose sum is σ = 3483393120. Its totient is φ = 1280439552.

The previous prime is 2243320333. The next prime is 2243320421. The reversal of 2243320401 is 1040233422.

It is not a de Polignac number, because 2243320401 - 2¹⁴ = 2243304017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (2243320421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128350 + ... + 144776.

It is an arithmetic number, because the mean of its divisors is an integer number (145141380).

Almost surely, 2^2243320401 is an apocalyptic number.

2243320401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2243320401 is a deficient number, since it is larger than the sum of its proper divisors (1240072719).

2243320401 is a wasteful number, since it uses less digits than its factorization.

2243320401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17373 (or 17366 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2243320401 is about 47363.7034130567. The cubic root of 2243320401 is about 1309.0727079825.

Adding to 2243320401 its reverse (1040233422), we get a palindrome (3283553823).

The spelling of 2243320401 in words is "two billion, two hundred forty-three million, three hundred twenty thousand, four hundred one".