30355794 has 72 divisors (see below), whose sum is σ = 77395968. Its totient is φ = 8573040.

The previous prime is 30355781. The next prime is 30355817. The reversal of 30355794 is 49755303.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 111879 + ... + 112149.

It is an arithmetic number, because the mean of its divisors is an integer number (1074944).

Almost surely, 2^30355794 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30355794, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38697984).

30355794 is an abundant number, since it is smaller than the sum of its proper divisors (47040174).

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

30355794 is a wasteful number, since it uses less digits than its factorization.

30355794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 36.

The square root of 30355794 is about 5509.6092420425. The cubic root of 30355794 is about 311.9467981278.

The spelling of 30355794 in words is "thirty million, three hundred fifty-five thousand, seven hundred ninety-four".