30213712 has 20 divisors (see below), whose sum is σ = 58739296. Its totient is φ = 15055200.

The previous prime is 30213707. The next prime is 30213739. The reversal of 30213712 is 21731203.

It is a self number, because there is not a number n which added to its sum of digits gives 30213712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1837 + ... + 7987.

Almost surely, 2^30213712 is an apocalyptic number.

It is an amenable number.

30213712 is a deficient number, since it is larger than the sum of its proper divisors (28525584).

30213712 is a wasteful number, since it uses less digits than its factorization.

30213712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6466 (or 6460 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 30213712 is about 5496.7001009697. The cubic root of 30213712 is about 311.4593419723.

Adding to 30213712 its reverse (21731203), we get a palindrome (51944915).

The spelling of 30213712 in words is "thirty million, two hundred thirteen thousand, seven hundred twelve".