30993384 has 16 divisors (see below), whose sum is σ = 77483520. Its totient is φ = 10331120.

The previous prime is 30993353. The next prime is 30993401. The reversal of 30993384 is 48339903.

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, 645672 + ... + 645719.

It is an arithmetic number, because the mean of its divisors is an integer number (4842720).

Almost surely, 2^30993384 is an apocalyptic number.

It is an amenable number.

30993384 is an abundant number, since it is smaller than the sum of its proper divisors (46490136).

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

30993384 is a wasteful number, since it uses less digits than its factorization.

30993384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291400 (or 1291396 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 30993384 is about 5567.1701967876. The cubic root of 30993384 is about 314.1157159347.

The spelling of 30993384 in words is "thirty million, nine hundred ninety-three thousand, three hundred eighty-four".