30734838 has 48 divisors (see below), whose sum is σ = 69713280. Its totient is φ = 9773568.

The previous prime is 30734813. The next prime is 30734863. The reversal of 30734838 is 83843703.

30734838 is a `hidden beast` number, since 307 + 348 + 3 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (30734813) and next prime (30734863).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 50331 + ... + 50937.

It is an arithmetic number, because the mean of its divisors is an integer number (1452360).

Almost surely, 2^30734838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30734838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34856640).

30734838 is an abundant number, since it is smaller than the sum of its proper divisors (38978442).

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

30734838 is a wasteful number, since it uses less digits than its factorization.

30734838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 30734838 is about 5543.9009731416. The cubic root of 30734838 is about 313.2398274881.

The spelling of 30734838 in words is "thirty million, seven hundred thirty-four thousand, eight hundred thirty-eight".