30342312 has 192 divisors, whose sum is σ = 110597760. Its totient is φ = 7257600.

The previous prime is 30342281. The next prime is 30342329. The reversal of 30342312 is 21324303.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71862 + ... + 72282.

It is an arithmetic number, because the mean of its divisors is an integer number (576030).

Almost surely, 2^30342312 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 30342312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55298880).

30342312 is an abundant number, since it is smaller than the sum of its proper divisors (80255448).

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

30342312 is a wasteful number, since it uses less digits than its factorization.

30342312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 30342312 is about 5508.3856074171. The cubic root of 30342312 is about 311.9006093672.

Adding to 30342312 its reverse (21324303), we get a palindrome (51666615).

Subtracting from 30342312 its reverse (21324303), we obtain a square (9018009 = 3003²).

The spelling of 30342312 in words is "thirty million, three hundred forty-two thousand, three hundred twelve".