28901220302 has 24 divisors (see below), whose sum is σ = 45797852016. Its totient is φ = 13676809824.

The previous prime is 28901220301. The next prime is 28901220323. The reversal of 28901220302 is 20302210982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28901220301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 748658 + ... + 786314.

It is an arithmetic number, because the mean of its divisors is an integer number (1908243834).

Almost surely, 2^28901220302 is an apocalyptic number.

28901220302 is a deficient number, since it is larger than the sum of its proper divisors (16896631714).

28901220302 is a wasteful number, since it uses less digits than its factorization.

28901220302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38760 (or 38741 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 28901220302 in words is "twenty-eight billion, nine hundred one million, two hundred twenty thousand, three hundred two".