30313332 has 96 divisors (see below), whose sum is σ = 90935040. Its totient is φ = 8553600.

The previous prime is 30313331. The next prime is 30313351. The reversal of 30313332 is 23331303.

It is a super-3 number, since 3×30313332³ (a number of 23 digits) contains 333 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30313331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76158 + ... + 76554.

It is an arithmetic number, because the mean of its divisors is an integer number (947240).

Almost surely, 2^30313332 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 30313332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45467520).

30313332 is an abundant number, since it is smaller than the sum of its proper divisors (60621708).

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

30313332 is a wasteful number, since it uses less digits than its factorization.

30313332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 18.

The square root of 30313332 is about 5505.7544442156. The cubic root of 30313332 is about 311.8012787814.

Adding to 30313332 its reverse (23331303), we get a palindrome (53644635).

The spelling of 30313332 in words is "thirty million, three hundred thirteen thousand, three hundred thirty-two".