30318652 has 72 divisors (see below), whose sum is σ = 67791696. Its totient is φ = 11757312.

The previous prime is 30318649. The next prime is 30318653. The reversal of 30318652 is 25681303.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 30318652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30318653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 185923 + ... + 186085.

Almost surely, 2^30318652 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 30318652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33895848).

30318652 is an abundant number, since it is smaller than the sum of its proper divisors (37473044).

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

30318652 is a wasteful number, since it uses less digits than its factorization.

30318652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 30318652 is about 5506.2375539019. The cubic root of 30318652 is about 311.8195181243.

Adding to 30318652 its reverse (25681303), we get a palindrome (55999955).

The spelling of 30318652 in words is "thirty million, three hundred eighteen thousand, six hundred fifty-two".