30399361 has 4 divisors (see below), whose sum is σ = 30412800. Its totient is φ = 30385924.

The previous prime is 30399359. The next prime is 30399377. The reversal of 30399361 is 16399303.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16399303 = 41 ⋅399983.

It is a cyclic number.

It is not a de Polignac number, because 30399361 - 2¹ = 30399359 is a prime.

It is a super-2 number, since 2×30399361² = 1848242298416642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30399461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2401 + ... + 8158.

It is an arithmetic number, because the mean of its divisors is an integer number (7603200).

Almost surely, 2^30399361 is an apocalyptic number.

It is an amenable number.

30399361 is a deficient number, since it is larger than the sum of its proper divisors (13439).

30399361 is a wasteful number, since it uses less digits than its factorization.

30399361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13438.

The product of its (nonzero) digits is 13122, while the sum is 34.

The square root of 30399361 is about 5513.5615531161. The cubic root of 30399361 is about 312.0959633859.

The spelling of 30399361 in words is "thirty million, three hundred ninety-nine thousand, three hundred sixty-one".