4432121440 has 24 divisors (see below), whose sum is σ = 10470887280. Its totient is φ = 1772848512.

The previous prime is 4432121423. The next prime is 4432121453. The reversal of 4432121440 is 441212344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13850220 + ... + 13850539.

It is an arithmetic number, because the mean of its divisors is an integer number (436286970).

Almost surely, 2^4432121440 is an apocalyptic number.

4432121440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4432121440 is an abundant number, since it is smaller than the sum of its proper divisors (6038765840).

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

4432121440 is a wasteful number, since it uses less digits than its factorization.

4432121440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27700774 (or 27700766 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 4432121440 is about 66574.1799799292. The cubic root of 4432121440 is about 1642.6204191888.

Adding to 4432121440 its reverse (441212344), we get a palindrome (4873333784).

The spelling of 4432121440 in words is "four billion, four hundred thirty-two million, one hundred twenty-one thousand, four hundred forty".