30338780 has 24 divisors (see below), whose sum is σ = 64311408. Its totient is φ = 12021248.

The previous prime is 30338773. The next prime is 30338783. The reversal of 30338780 is 8783303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30338783) 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 7 ways as a sum of consecutive naturals, for example, 4949 + ... + 9228.

It is an arithmetic number, because the mean of its divisors is an integer number (2679642).

Almost surely, 2^30338780 is an apocalyptic number.

It is an amenable number.

30338780 is an abundant number, since it is smaller than the sum of its proper divisors (33972628).

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

30338780 is a wasteful number, since it uses less digits than its factorization.

30338780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14293 (or 14291 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 30338780 is about 5508.0649959854. The cubic root of 30338780 is about 311.8885066232. Note that the first 3 decimals are identical.

The spelling of 30338780 in words is "thirty million, three hundred thirty-eight thousand, seven hundred eighty".