30028458 has 16 divisors (see below), whose sum is σ = 60120000. Its totient is φ = 9998976.

The previous prime is 30028457. The next prime is 30028483. The reversal of 30028458 is 85482003.

It is not an unprimeable number, because it can be changed into a prime (30028457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5491 + ... + 9497.

It is an arithmetic number, because the mean of its divisors is an integer number (3757500).

Almost surely, 2^30028458 is an apocalyptic number.

30028458 is an abundant number, since it is smaller than the sum of its proper divisors (30091542).

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

30028458 is a wasteful number, since it uses less digits than its factorization.

30028458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5261.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 30028458 is about 5479.8228073543. The cubic root of 30028458 is about 310.8214702367.

The spelling of 30028458 in words is "thirty million, twenty-eight thousand, four hundred fifty-eight".