30434028 has 24 divisors (see below), whose sum is σ = 71705088. Its totient is φ = 10045776.

The previous prime is 30434011. The next prime is 30434057. The reversal of 30434028 is 82043403.

It is a junction number, because it is equal to n+sod(n) for n = 30433989 and 30434007.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11076 + ... + 13547.

It is an arithmetic number, because the mean of its divisors is an integer number (2987712).

Almost surely, 2^30434028 is an apocalyptic number.

It is an amenable number.

30434028 is an abundant number, since it is smaller than the sum of its proper divisors (41271060).

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

30434028 is a wasteful number, since it uses less digits than its factorization.

30434028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24733 (or 24731 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 30434028 is about 5516.7044510287. The cubic root of 30434028 is about 312.2145549203.

The spelling of 30434028 in words is "thirty million, four hundred thirty-four thousand, twenty-eight".