30308412 has 12 divisors (see below), whose sum is σ = 70719656. Its totient is φ = 10102800.

The previous prime is 30308387. The next prime is 30308413. The reversal of 30308412 is 21480303.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×30308412³ (a number of 23 digits) contains 333 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30308413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1262839 + ... + 1262862.

Almost surely, 2^30308412 is an apocalyptic number.

It is an amenable number.

30308412 is an abundant number, since it is smaller than the sum of its proper divisors (40411244).

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

30308412 is a wasteful number, since it uses less digits than its factorization.

30308412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2525708 (or 2525706 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 30308412 is about 5505.3076208328. The cubic root of 30308412 is about 311.7844089182.

Adding to 30308412 its reverse (21480303), we get a palindrome (51788715).

The spelling of 30308412 in words is "thirty million, three hundred eight thousand, four hundred twelve".