30189192 has 64 divisors (see below), whose sum is σ = 82935360. Its totient is φ = 9081600.

The previous prime is 30189169. The next prime is 30189199. The reversal of 30189192 is 29198103.

It is a super-2 number, since 2×30189192² = 1822774627225728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (30189199) 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 15 ways as a sum of consecutive naturals, for example, 45342 + ... + 46002.

It is an arithmetic number, because the mean of its divisors is an integer number (1295865).

Almost surely, 2^30189192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30189192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41467680).

30189192 is an abundant number, since it is smaller than the sum of its proper divisors (52746168).

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

30189192 is a wasteful number, since it uses less digits than its factorization.

30189192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854 (or 850 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 30189192 is about 5494.4692191330. The cubic root of 30189192 is about 311.3750640134.

It can be divided in two parts, 30189 and 192, that added together give a triangular number (30381 = T₂₄₆).

The spelling of 30189192 in words is "thirty million, one hundred eighty-nine thousand, one hundred ninety-two".