30693312 has 84 divisors (see below), whose sum is σ = 94767400. Its totient is φ = 9441792.

The previous prime is 30693287. The next prime is 30693367. The reversal of 30693312 is 21339603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5439 + ... + 9537.

Almost surely, 2^30693312 is an apocalyptic number.

30693312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30693312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47383700).

30693312 is an abundant number, since it is smaller than the sum of its proper divisors (64074088).

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

30693312 is a wasteful number, since it uses less digits than its factorization.

30693312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4130 (or 4117 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 30693312 is about 5540.1545104807. The cubic root of 30693312 is about 313.0986905835.

The spelling of 30693312 in words is "thirty million, six hundred ninety-three thousand, three hundred twelve".