2242140421 has 8 divisors (see below), whose sum is σ = 2400707160. Its totient is φ = 2086537728.

The previous prime is 2242140413. The next prime is 2242140427. The reversal of 2242140421 is 1240412422.

It can be written as a sum of positive squares in 4 ways, for example, as 78588225 + 2163552196 = 8865^2 + 46514^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2242140421 - 2³ = 2242140413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2242140392 and 2242140401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2242140427) 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, 739446 + ... + 742471.

It is an arithmetic number, because the mean of its divisors is an integer number (300088395).

Almost surely, 2^2242140421 is an apocalyptic number.

It is an amenable number.

2242140421 is a deficient number, since it is larger than the sum of its proper divisors (158566739).

2242140421 is a wasteful number, since it uses less digits than its factorization.

2242140421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482023.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 2242140421 is about 47351.2451895407. The cubic root of 2242140421 is about 1308.8431449169.

Adding to 2242140421 its reverse (1240412422), we get a palindrome (3482552843).

The spelling of 2242140421 in words is "two billion, two hundred forty-two million, one hundred forty thousand, four hundred twenty-one".