2240312421 has 8 divisors (see below), whose sum is σ = 2988365344. Its totient is φ = 1492900560.

The previous prime is 2240312419. The next prime is 2240312443. The reversal of 2240312421 is 1242130422.

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

It is not a de Polignac number, because 2240312421 - 2¹ = 2240312419 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240312461) 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, 152050 + ... + 166131.

It is an arithmetic number, because the mean of its divisors is an integer number (373545668).

Almost surely, 2^2240312421 is an apocalyptic number.

It is an amenable number.

2240312421 is a deficient number, since it is larger than the sum of its proper divisors (748052923).

2240312421 is a wasteful number, since it uses less digits than its factorization.

2240312421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320531.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2240312421 is about 47331.9386989377. The cubic root of 2240312421 is about 1308.4873515933.

Adding to 2240312421 its reverse (1242130422), we get a palindrome (3482442843).

The spelling of 2240312421 in words is "two billion, two hundred forty million, three hundred twelve thousand, four hundred twenty-one".