30840359 has 6 divisors (see below), whose sum is σ = 33899040. Its totient is φ = 28036580.

The previous prime is 30840353. The next prime is 30840361. The reversal of 30840359 is 95304803.

It is not a de Polignac number, because 30840359 - 2⁴ = 30840343 is a prime.

It is a super-2 number, since 2×30840359² = 1902255486497762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30840353) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 127319 + ... + 127560.

It is an arithmetic number, because the mean of its divisors is an integer number (5649840).

Almost surely, 2^30840359 is an apocalyptic number.

30840359 is a deficient number, since it is larger than the sum of its proper divisors (3058681).

30840359 is a wasteful number, since it uses less digits than its factorization.

30840359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254901 (or 254890 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 30840359 is about 5553.4096733448. The cubic root of 30840359 is about 313.5978969939.

The spelling of 30840359 in words is "thirty million, eight hundred forty thousand, three hundred fifty-nine".