28980230900 has 36 divisors (see below), whose sum is σ = 64420941900. Its totient is φ = 11309356800.

The previous prime is 28980230893. The next prime is 28980230921. The reversal of 28980230900 is 903208982.

It can be written as a sum of positive squares in 6 ways, for example, as 6961232356 + 22018998544 = 83434^2 + 148388^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3530075 + ... + 3538274.

Almost surely, 2^28980230900 is an apocalyptic number.

28980230900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28980230900 is an abundant number, since it is smaller than the sum of its proper divisors (35440711000).

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

28980230900 is a wasteful number, since it uses less digits than its factorization.

28980230900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7068404 (or 7068397 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 28980230900 in words is "twenty-eight billion, nine hundred eighty million, two hundred thirty thousand, nine hundred".