30298028 has 6 divisors (see below), whose sum is σ = 53021556. Its totient is φ = 15149012.

The previous prime is 30297979. The next prime is 30298031. The reversal of 30298028 is 82089203.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30297985 and 30298003.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3787250 + ... + 3787257.

It is an arithmetic number, because the mean of its divisors is an integer number (8836926).

Almost surely, 2^30298028 is an apocalyptic number.

It is an amenable number.

30298028 is a deficient number, since it is larger than the sum of its proper divisors (22723528).

30298028 is a wasteful number, since it uses less digits than its factorization.

30298028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7574511 (or 7574509 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 30298028 is about 5504.3644501432. The cubic root of 30298028 is about 311.7487979123.

The spelling of 30298028 in words is "thirty million, two hundred ninety-eight thousand, twenty-eight".