2240214021 has 6 divisors (see below), whose sum is σ = 3235864710. Its totient is φ = 1493476008.

The previous prime is 2240214001. The next prime is 2240214023. The reversal of 2240214021 is 1204120422.

2240214021 is a `hidden beast` number, since 2 + 240 + 21 + 402 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2028511521 + 211702500 = 45039^2 + 14550^2 .

It is not a de Polignac number, because 2240214021 - 2⁹ = 2240213509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2240213985 and 2240214003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240214023) 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 5 ways as a sum of consecutive naturals, for example, 124456326 + ... + 124456343.

It is an arithmetic number, because the mean of its divisors is an integer number (539310785).

Almost surely, 2^2240214021 is an apocalyptic number.

It is an amenable number.

2240214021 is a deficient number, since it is larger than the sum of its proper divisors (995650689).

2240214021 is a wasteful number, since it uses less digits than its factorization.

2240214021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248912675 (or 248912672 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2240214021 is about 47330.8992202768. The cubic root of 2240214021 is about 1308.4681939914.

Adding to 2240214021 its reverse (1204120422), we get a palindrome (3444334443).

The spelling of 2240214021 in words is "two billion, two hundred forty million, two hundred fourteen thousand, twenty-one".