5388432321 has 24 divisors (see below), whose sum is σ = 7344089760. Its totient is φ = 3513476736.

The previous prime is 5388432317. The next prime is 5388432337. The reversal of 5388432321 is 1232348835.

It is not a de Polignac number, because 5388432321 - 2² = 5388432317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5388432321.

It is not an unprimeable number, because it can be changed into a prime (5388432311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5339865 + ... + 5340873.

It is an arithmetic number, because the mean of its divisors is an integer number (306003740).

Almost surely, 2^5388432321 is an apocalyptic number.

It is an amenable number.

5388432321 is a deficient number, since it is larger than the sum of its proper divisors (1955657439).

5388432321 is a wasteful number, since it uses less digits than its factorization.

5388432321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405 (or 1242 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The square root of 5388432321 is about 73405.9420006310. The cubic root of 5388432321 is about 1753.1570029421.

The spelling of 5388432321 in words is "five billion, three hundred eighty-eight million, four hundred thirty-two thousand, three hundred twenty-one".