4421242391 has 8 divisors (see below), whose sum is σ = 4431009744. Its totient is φ = 4411487680.

The previous prime is 4421242381. The next prime is 4421242403. The reversal of 4421242391 is 1932421244.

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 4421242391 - 2²⁶ = 4354133527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4421242381) 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, 1030136 + ... + 1034418.

It is an arithmetic number, because the mean of its divisors is an integer number (553876218).

Almost surely, 2^4421242391 is an apocalyptic number.

4421242391 is a deficient number, since it is larger than the sum of its proper divisors (9767353).

4421242391 is a wasteful number, since it uses less digits than its factorization.

4421242391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6321.

The product of its digits is 13824, while the sum is 32.

The square root of 4421242391 is about 66492.4235608840. The cubic root of 4421242391 is about 1641.2753304957.

The spelling of 4421242391 in words is "four billion, four hundred twenty-one million, two hundred forty-two thousand, three hundred ninety-one".