2143622544 has 40 divisors (see below), whose sum is σ = 6328791360. Its totient is φ = 612463488.

The previous prime is 2143622539. The next prime is 2143622567. The reversal of 2143622544 is 4452263412.

It is a super-2 number, since 2×2143622544² = 9190235222290063872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3189579 + ... + 3190250.

It is an arithmetic number, because the mean of its divisors is an integer number (158219784).

Almost surely, 2^2143622544 is an apocalyptic number.

2143622544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2143622544 is an abundant number, since it is smaller than the sum of its proper divisors (4185168816).

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

2143622544 is a wasteful number, since it uses less digits than its factorization.

2143622544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6379847 (or 6379841 counting only the distinct ones).

The product of its digits is 46080, while the sum is 33.

The square root of 2143622544 is about 46299.2715277465. The cubic root of 2143622544 is about 1289.3854701718.

Adding to 2143622544 its reverse (4452263412), we get a palindrome (6595885956).

The spelling of 2143622544 in words is "two billion, one hundred forty-three million, six hundred twenty-two thousand, five hundred forty-four".