30185356 has 12 divisors (see below), whose sum is σ = 52864560. Its totient is φ = 15081200.

The previous prime is 30185341. The next prime is 30185369. The reversal of 30185356 is 65358103.

It is a super-2 number, since 2×30185356² = 1822311433693472, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6306 + ... + 10006.

It is an arithmetic number, because the mean of its divisors is an integer number (4405380).

Almost surely, 2^30185356 is an apocalyptic number.

It is an amenable number.

30185356 is a deficient number, since it is larger than the sum of its proper divisors (22679204).

30185356 is a wasteful number, since it uses less digits than its factorization.

30185356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5744 (or 5742 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 30185356 is about 5494.1201297387. The cubic root of 30185356 is about 311.3618751284.

The spelling of 30185356 in words is "thirty million, one hundred eighty-five thousand, three hundred fifty-six".