30199389 has 16 divisors (see below), whose sum is σ = 44029440. Its totient is φ = 18259760.

The previous prime is 30199387. The next prime is 30199397. The reversal of 30199389 is 98399103.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 30199389 - 2¹ = 30199387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30199389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30199387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18592 + ... + 20150.

It is an arithmetic number, because the mean of its divisors is an integer number (2751840).

Almost surely, 2^30199389 is an apocalyptic number.

It is an amenable number.

30199389 is a deficient number, since it is larger than the sum of its proper divisors (13830051).

30199389 is a wasteful number, since it uses less digits than its factorization.

30199389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 30199389 is about 5495.3970739156. The cubic root of 30199389 is about 311.4101177738.

The spelling of 30199389 in words is "thirty million, one hundred ninety-nine thousand, three hundred eighty-nine".