30426312 has 64 divisors (see below), whose sum is σ = 88387200. Its totient is φ = 8547840.

The previous prime is 30426271. The next prime is 30426313. The reversal of 30426312 is 21362403.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (30426313) 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, 8764 + ... + 11732.

It is an arithmetic number, because the mean of its divisors is an integer number (1381050).

Almost surely, 2^30426312 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 30426312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44193600).

30426312 is an abundant number, since it is smaller than the sum of its proper divisors (57960888).

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

30426312 is a wasteful number, since it uses less digits than its factorization.

30426312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3046 (or 3042 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 30426312 is about 5516.0050761398. The cubic root of 30426312 is about 312.1881672299.

Adding to 30426312 its reverse (21362403), we get a palindrome (51788715).

The spelling of 30426312 in words is "thirty million, four hundred twenty-six thousand, three hundred twelve".