30575868 has 12 divisors (see below), whose sum is σ = 71343720. Its totient is φ = 10191952.

The previous prime is 30575833. The next prime is 30575899. The reversal of 30575868 is 86857503.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 1273983 + ... + 1274006.

It is an arithmetic number, because the mean of its divisors is an integer number (5945310).

Almost surely, 2^30575868 is an apocalyptic number.

It is an amenable number.

30575868 is an abundant number, since it is smaller than the sum of its proper divisors (40767852).

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

30575868 is a wasteful number, since it uses less digits than its factorization.

30575868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547996 (or 2547994 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 30575868 is about 5529.5450084071. The cubic root of 30575868 is about 312.6988362318.

The spelling of 30575868 in words is "thirty million, five hundred seventy-five thousand, eight hundred sixty-eight".