302800028 has 12 divisors (see below), whose sum is σ = 530944680. Its totient is φ = 151101552.

The previous prime is 302800021. The next prime is 302800031. The reversal of 302800028 is 820008203.

It is a junction number, because it is equal to n+sod(n) for n = 302799976 and 302800012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302800021) 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, 72326 + ... + 76397.

It is an arithmetic number, because the mean of its divisors is an integer number (44245390).

Almost surely, 2^302800028 is an apocalyptic number.

It is an amenable number.

302800028 is a deficient number, since it is larger than the sum of its proper divisors (228144652).

302800028 is a wasteful number, since it uses less digits than its factorization.

302800028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149236 (or 149234 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 302800028 is about 17401.1501918695. The cubic root of 302800028 is about 671.5092050093.

The spelling of 302800028 in words is "three hundred two million, eight hundred thousand, twenty-eight".