30349212 has 12 divisors (see below), whose sum is σ = 70814856. Its totient is φ = 10116400.

The previous prime is 30349211. The next prime is 30349223. The reversal of 30349212 is 21294303.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30349211) 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, 1264539 + ... + 1264562.

It is an arithmetic number, because the mean of its divisors is an integer number (5901238).

Almost surely, 2^30349212 is an apocalyptic number.

It is an amenable number.

30349212 is an abundant number, since it is smaller than the sum of its proper divisors (40465644).

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

30349212 is a wasteful number, since it uses less digits than its factorization.

30349212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2529108 (or 2529106 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 30349212 is about 5509.0118896223. The cubic root of 30349212 is about 311.9242501837.

It can be divided in two parts, 3034 and 9212, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 30349212 in words is "thirty million, three hundred forty-nine thousand, two hundred twelve".