30085399 has 8 divisors (see below), whose sum is σ = 30412160. Its totient is φ = 29760696.

The previous prime is 30085387. The next prime is 30085409. The reversal of 30085399 is 99358003.

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

It is a 4-Lehmer number, since φ(30085399) divides (30085399-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 30085399 - 2¹⁹ = 29561111 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 (30085309) 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, 61534 + ... + 62020.

It is an arithmetic number, because the mean of its divisors is an integer number (3801520).

Almost surely, 2^30085399 is an apocalyptic number.

30085399 is a deficient number, since it is larger than the sum of its proper divisors (326761).

30085399 is a wasteful number, since it uses less digits than its factorization.

30085399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 30085399 is about 5485.0158614174. The cubic root of 30085399 is about 311.0178096589.

The spelling of 30085399 in words is "thirty million, eighty-five thousand, three hundred ninety-nine".