30427828 has 12 divisors (see below), whose sum is σ = 53528832. Its totient is φ = 15133880.

The previous prime is 30427823. The next prime is 30427829. The reversal of 30427828 is 82872403.

It is a junction number, because it is equal to n+sod(n) for n = 30427793 and 30427802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30427823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19150 + ... + 20677.

It is an arithmetic number, because the mean of its divisors is an integer number (4460736).

Almost surely, 2^30427828 is an apocalyptic number.

It is an amenable number.

30427828 is a deficient number, since it is larger than the sum of its proper divisors (23101004).

30427828 is a wasteful number, since it uses less digits than its factorization.

30427828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40022 (or 40020 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 30427828 is about 5516.1424927208. The cubic root of 30427828 is about 312.1933520997.

The spelling of 30427828 in words is "thirty million, four hundred twenty-seven thousand, eight hundred twenty-eight".