28370321032 has 16 divisors (see below), whose sum is σ = 53214218640. Its totient is φ = 14179862736.

The previous prime is 28370320961. The next prime is 28370321039. The reversal of 28370321032 is 23012307382.

It is a junction number, because it is equal to n+sod(n) for n = 28370320985 and 28370321003.

It is not an unprimeable number, because it can be changed into a prime (28370321039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639418 + ... + 682345.

It is an arithmetic number, because the mean of its divisors is an integer number (3325888665).

Almost surely, 2^28370321032 is an apocalyptic number.

It is an amenable number.

28370321032 is a deficient number, since it is larger than the sum of its proper divisors (24843897608).

28370321032 is a wasteful number, since it uses less digits than its factorization.

28370321032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324452 (or 1324448 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The spelling of 28370321032 in words is "twenty-eight billion, three hundred seventy million, three hundred twenty-one thousand, thirty-two".