2240342421 has 8 divisors (see below), whose sum is σ = 3144340320. Its totient is φ = 1414953072.

The previous prime is 2240342411. The next prime is 2240342437. The reversal of 2240342421 is 1242430422.

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

It is a de Polignac number, because none of the positive numbers 2^k-2240342421 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2240342391 and 2240342400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240342411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19652070 + ... + 19652183.

It is an arithmetic number, because the mean of its divisors is an integer number (393042540).

Almost surely, 2^2240342421 is an apocalyptic number.

It is an amenable number.

2240342421 is a deficient number, since it is larger than the sum of its proper divisors (903997899).

2240342421 is a wasteful number, since it uses less digits than its factorization.

2240342421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39304275.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 2240342421 is about 47332.2556086228. The cubic root of 2240342421 is about 1308.4931922140.

Adding to 2240342421 its reverse (1242430422), we get a palindrome (3482772843).

The spelling of 2240342421 in words is "two billion, two hundred forty million, three hundred forty-two thousand, four hundred twenty-one".