30516428 has 24 divisors (see below), whose sum is σ = 57107232. Its totient is φ = 14217984.

The previous prime is 30516427. The next prime is 30516433. The reversal of 30516428 is 82461503.

It is a self number, because there is not a number n which added to its sum of digits gives 30516428.

It is not an unprimeable number, because it can be changed into a prime (30516427) 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, 4826 + ... + 9182.

It is an arithmetic number, because the mean of its divisors is an integer number (2379468).

Almost surely, 2^30516428 is an apocalyptic number.

It is an amenable number.

30516428 is a deficient number, since it is larger than the sum of its proper divisors (26590804).

30516428 is a wasteful number, since it uses less digits than its factorization.

30516428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4481 (or 4479 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 30516428 is about 5524.1676296072. The cubic root of 30516428 is about 312.4960741907.

The spelling of 30516428 in words is "thirty million, five hundred sixteen thousand, four hundred twenty-eight".