30199391 has 8 divisors (see below), whose sum is σ = 31868640. Its totient is φ = 28559872.

The previous prime is 30199387. The next prime is 30199397. The reversal of 30199391 is 19399103.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30199391 - 2² = 30199387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30199397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5330 + ... + 9423.

It is an arithmetic number, because the mean of its divisors is an integer number (3983580).

Almost surely, 2^30199391 is an apocalyptic number.

30199391 is a deficient number, since it is larger than the sum of its proper divisors (1669249).

30199391 is a wasteful number, since it uses less digits than its factorization.

30199391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14865.

The product of its (nonzero) digits is 6561, while the sum is 35.

The square root of 30199391 is about 5495.3972558861. The cubic root of 30199391 is about 311.4101246483.

The spelling of 30199391 in words is "thirty million, one hundred ninety-nine thousand, three hundred ninety-one".