30212394 has 16 divisors (see below), whose sum is σ = 63605280. Its totient is φ = 9540720.

The previous prime is 30212393. The next prime is 30212401. The reversal of 30212394 is 49321203.

It is a super-2 number, since 2×30212394² = 1825577502422472, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30212393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132397 + ... + 132624.

It is an arithmetic number, because the mean of its divisors is an integer number (3975330).

Almost surely, 2^30212394 is an apocalyptic number.

30212394 is an abundant number, since it is smaller than the sum of its proper divisors (33392886).

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

30212394 is a wasteful number, since it uses less digits than its factorization.

30212394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265045.

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

The square root of 30212394 is about 5496.5802095485. The cubic root of 30212394 is about 311.4548130200.

Adding to 30212394 its reverse (49321203), we get a palindrome (79533597).

The spelling of 30212394 in words is "thirty million, two hundred twelve thousand, three hundred ninety-four".