30294028 has 6 divisors (see below), whose sum is σ = 53014556. Its totient is φ = 15147012.

The previous prime is 30294023. The next prime is 30294031. The reversal of 30294028 is 82049203.

It is a junction number, because it is equal to n+sod(n) for n = 30293987 and 30294005.

It is not an unprimeable number, because it can be changed into a prime (30294023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3786750 + ... + 3786757.

Almost surely, 2^30294028 is an apocalyptic number.

It is an amenable number.

30294028 is a deficient number, since it is larger than the sum of its proper divisors (22720528).

30294028 is a wasteful number, since it uses less digits than its factorization.

30294028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7573511 (or 7573509 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 30294028 is about 5504.0010901162. The cubic root of 30294028 is about 311.7350780967.

The spelling of 30294028 in words is "thirty million, two hundred ninety-four thousand, twenty-eight".