28790459332 has 12 divisors (see below), whose sum is σ = 50990332176. Its totient is φ = 14221793000.

The previous prime is 28790459309. The next prime is 28790459339. The reversal of 28790459332 is 23395409782.

It is a self number, because there is not a number n which added to its sum of digits gives 28790459332.

It is not an unprimeable number, because it can be changed into a prime (28790459339) 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, 43358794 + ... + 43359457.

It is an arithmetic number, because the mean of its divisors is an integer number (4249194348).

Almost surely, 2^28790459332 is an apocalyptic number.

It is an amenable number.

28790459332 is a deficient number, since it is larger than the sum of its proper divisors (22199872844).

28790459332 is a wasteful number, since it uses less digits than its factorization.

28790459332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86718338 (or 86718336 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 28790459332 in words is "twenty-eight billion, seven hundred ninety million, four hundred fifty-nine thousand, three hundred thirty-two".