30193968 has 80 divisors (see below), whose sum is σ = 90438656. Its totient is φ = 8501760.

The previous prime is 30193949. The next prime is 30193973. The reversal of 30193968 is 86939103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23913 + ... + 25143.

Almost surely, 2^30193968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30193968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45219328).

30193968 is an abundant number, since it is smaller than the sum of its proper divisors (60244688).

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

30193968 is a wasteful number, since it uses less digits than its factorization.

30193968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322 (or 1316 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 30193968 is about 5494.9038208143. The cubic root of 30193968 is about 311.3914832327.

The spelling of 30193968 in words is "thirty million, one hundred ninety-three thousand, nine hundred sixty-eight".