30428027 has 16 divisors (see below), whose sum is σ = 36023232. Its totient is φ = 25159680.

The previous prime is 30428003. The next prime is 30428039. The reversal of 30428027 is 72082403.

It is not a de Polignac number, because 30428027 - 2¹⁶ = 30362491 is a prime.

It is a super-2 number, since 2×30428027² = 1851729654225458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30427987 and 30428005.

It is not an unprimeable number, because it can be changed into a prime (30428077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27293 + ... + 28385.

It is an arithmetic number, because the mean of its divisors is an integer number (2251452).

Almost surely, 2^30428027 is an apocalyptic number.

30428027 is a deficient number, since it is larger than the sum of its proper divisors (5595205).

30428027 is a wasteful number, since it uses less digits than its factorization.

30428027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 30428027 is about 5516.1605306590. The cubic root of 30428027 is about 312.1940326866.

The spelling of 30428027 in words is "thirty million, four hundred twenty-eight thousand, twenty-seven".