2288442621 has 8 divisors (see below), whose sum is σ = 3054068224. Its totient is φ = 1524222720.

The previous prime is 2288442619. The next prime is 2288442649. The reversal of 2288442621 is 1262448822.

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

It is not a de Polignac number, because 2288442621 - 2¹ = 2288442619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2288442621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2288442601) 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, 347620 + ... + 354141.

It is an arithmetic number, because the mean of its divisors is an integer number (381758528).

Almost surely, 2^2288442621 is an apocalyptic number.

It is an amenable number.

2288442621 is a deficient number, since it is larger than the sum of its proper divisors (765625603).

2288442621 is a wasteful number, since it uses less digits than its factorization.

2288442621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702851.

The product of its digits is 98304, while the sum is 39.

The square root of 2288442621 is about 47837.6694770972. The cubic root of 2288442621 is about 1317.7914209520.

The spelling of 2288442621 in words is "two billion, two hundred eighty-eight million, four hundred forty-two thousand, six hundred twenty-one".