30152232 has 72 divisors (see below), whose sum is σ = 89786970. Its totient is φ = 9134400.

The previous prime is 30152231. The next prime is 30152249. The reversal of 30152232 is 23225103.

It can be written as a sum of positive squares in only one way, i.e., 28579716 + 1572516 = 5346^2 + 1254^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30152231) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6982 + ... + 10442.

Almost surely, 2^30152232 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 30152232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44893485).

30152232 is an abundant number, since it is smaller than the sum of its proper divisors (59634738).

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

30152232 is a wasteful number, since it uses less digits than its factorization.

30152232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3495 (or 3477 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 30152232 is about 5491.1048068672. The cubic root of 30152232 is about 311.2479421164.

Adding to 30152232 its reverse (23225103), we get a palindrome (53377335).

The spelling of 30152232 in words is "thirty million, one hundred fifty-two thousand, two hundred thirty-two".