2240444421 has 16 divisors (see below), whose sum is σ = 3463489920. Its totient is φ = 1428688800.

The previous prime is 2240444389. The next prime is 2240444441. The reversal of 2240444421 is 1244440422.

It is not a de Polignac number, because 2240444421 - 2⁵ = 2240444389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240444441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1803280 + ... + 1804521.

It is an arithmetic number, because the mean of its divisors is an integer number (216468120).

Almost surely, 2^2240444421 is an apocalyptic number.

It is an amenable number.

2240444421 is a deficient number, since it is larger than the sum of its proper divisors (1223045499).

2240444421 is a wasteful number, since it uses less digits than its factorization.

2240444421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3607833 (or 3607827 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

The square root of 2240444421 is about 47333.3330856808. Note that the first 3 decimals coincide. The cubic root of 2240444421 is about 1308.5130499344.

Adding to 2240444421 its reverse (1244440422), we get a palindrome (3484884843).

The spelling of 2240444421 in words is "two billion, two hundred forty million, four hundred forty-four thousand, four hundred twenty-one".