30800431 has 4 divisors (see below), whose sum is σ = 30821472. Its totient is φ = 30779392.

The previous prime is 30800411. The next prime is 30800449. The reversal of 30800431 is 13400803.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13400803 = 13 ⋅1030831.

It is a cyclic number.

It is not a de Polignac number, because 30800431 - 2⁹ = 30799919 is a prime.

It is a super-2 number, since 2×30800431² = 1897333099571522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30800399 and 30800408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30800411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8146 + ... + 11311.

It is an arithmetic number, because the mean of its divisors is an integer number (7705368).

Almost surely, 2^30800431 is an apocalyptic number.

30800431 is a deficient number, since it is larger than the sum of its proper divisors (21041).

30800431 is a wasteful number, since it uses less digits than its factorization.

30800431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21040.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 30800431 is about 5549.8136004734. The cubic root of 30800431 is about 313.4625035810.

The spelling of 30800431 in words is "thirty million, eight hundred thousand, four hundred thirty-one".