30302112 has 96 divisors (see below), whose sum is σ = 86184000. Its totient is φ = 9289728.

The previous prime is 30302101. The next prime is 30302119. The reversal of 30302112 is 21120303.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (30302119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67264 + ... + 67712.

It is an arithmetic number, because the mean of its divisors is an integer number (897750).

Almost surely, 2^30302112 is an apocalyptic number.

30302112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30302112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43092000).

30302112 is an abundant number, since it is smaller than the sum of its proper divisors (55881888).

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

30302112 is a wasteful number, since it uses less digits than its factorization.

30302112 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 36, while the sum is 12.

The square root of 30302112 is about 5504.7354159850. The cubic root of 30302112 is about 311.7628045982.

Adding to 30302112 its reverse (21120303), we get a palindrome (51422415).

The spelling of 30302112 in words is "thirty million, three hundred two thousand, one hundred twelve".