30185232 has 80 divisors (see below), whose sum is σ = 97231872. Its totient is φ = 7839360.

The previous prime is 30185231. The next prime is 30185257. The reversal of 30185232 is 23258103.

It is a super-2 number, since 2×30185232² = 1822296461787648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (30185231) 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, 388 + ... + 7779.

Almost surely, 2^30185232 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 30185232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48615936).

30185232 is an abundant number, since it is smaller than the sum of its proper divisors (67046640).

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

30185232 is a wasteful number, since it uses less digits than its factorization.

30185232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8196 (or 8190 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 30185232 is about 5494.1088449356. The cubic root of 30185232 is about 311.3614487746.

The spelling of 30185232 in words is "thirty million, one hundred eighty-five thousand, two hundred thirty-two".