2542221444 has 48 divisors (see below), whose sum is σ = 6791299200. Its totient is φ = 725058816.

The previous prime is 2542221439. The next prime is 2542221467. The reversal of 2542221444 is 4441222452.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21202 + ... + 74390.

It is an arithmetic number, because the mean of its divisors is an integer number (141485400).

Almost surely, 2^2542221444 is an apocalyptic number.

It is an amenable number.

2542221444 is an abundant number, since it is smaller than the sum of its proper divisors (4249077756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2542221444 is a wasteful number, since it uses less digits than its factorization.

2542221444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53772 (or 53770 counting only the distinct ones).

The product of its digits is 20480, while the sum is 30.

The square root of 2542221444 is about 50420.4466858436. The cubic root of 2542221444 is about 1364.8066373982.

Adding to 2542221444 its reverse (4441222452), we get a palindrome (6983443896).

The spelling of 2542221444 in words is "two billion, five hundred forty-two million, two hundred twenty-one thousand, four hundred forty-four".