4001322544 has 20 divisors (see below), whose sum is σ = 7868274424. Its totient is φ = 1970800128.

The previous prime is 4001322539. The next prime is 4001322599. The reversal of 4001322544 is 4452231004.

It is a happy number.

It is a super-2 number, since 2×4001322544² = 32021164202245263872, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1865217 + ... + 1867360.

Almost surely, 2^4001322544 is an apocalyptic number.

It is an amenable number.

4001322544 is a deficient number, since it is larger than the sum of its proper divisors (3866951880).

4001322544 is a wasteful number, since it uses less digits than its factorization.

4001322544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3732652 (or 3732646 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 4001322544 is about 63256.0079676231. The cubic root of 4001322544 is about 1587.5759833348.

Adding to 4001322544 its reverse (4452231004), we get a palindrome (8453553548).

The spelling of 4001322544 in words is "four billion, one million, three hundred twenty-two thousand, five hundred forty-four".