30380312 has 8 divisors (see below), whose sum is σ = 56963100. Its totient is φ = 15190152.

The previous prime is 30380299. The next prime is 30380321. The reversal of 30380312 is 21308303.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1898762 + ... + 1898777.

Almost surely, 2^30380312 is an apocalyptic number.

It is an amenable number.

30380312 is a deficient number, since it is larger than the sum of its proper divisors (26582788).

30380312 is a wasteful number, since it uses less digits than its factorization.

30380312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3797545 (or 3797541 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 30380312 is about 5511.8338146210. The cubic root of 30380312 is about 312.0307607191.

Adding to 30380312 its reverse (21308303), we get a palindrome (51688615).

The spelling of 30380312 in words is "thirty million, three hundred eighty thousand, three hundred twelve".