30808338 has 32 divisors (see below), whose sum is σ = 67417920. Its totient is φ = 9308160.

The previous prime is 30808331. The next prime is 30808357. The reversal of 30808338 is 83380803.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 30808299 and 30808308.

It is not an unprimeable number, because it can be changed into a prime (30808331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37678 + ... + 38486.

It is an arithmetic number, because the mean of its divisors is an integer number (2106810).

Almost surely, 2^30808338 is an apocalyptic number.

30808338 is an abundant number, since it is smaller than the sum of its proper divisors (36609582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30808338 is a wasteful number, since it uses less digits than its factorization.

30808338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 30808338 is about 5550.5259210277. The cubic root of 30808338 is about 313.4893250233.

The spelling of 30808338 in words is "thirty million, eight hundred eight thousand, three hundred thirty-eight".