28752446238 has 16 divisors (see below), whose sum is σ = 57517894416. Its totient is φ = 9581981760.

The previous prime is 28752446237. The next prime is 28752446243. The reversal of 28752446238 is 83264425782.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28752446231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512881 + ... + 566172.

It is an arithmetic number, because the mean of its divisors is an integer number (3594868401).

Almost surely, 2^28752446238 is an apocalyptic number.

28752446238 is an abundant number, since it is smaller than the sum of its proper divisors (28765448178).

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

28752446238 is a wasteful number, since it uses less digits than its factorization.

28752446238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083499.

The product of its digits is 5160960, while the sum is 51.

The spelling of 28752446238 in words is "twenty-eight billion, seven hundred fifty-two million, four hundred forty-six thousand, two hundred thirty-eight".