30855258 has 48 divisors (see below), whose sum is σ = 76804416. Its totient is φ = 8769600.

The previous prime is 30855257. The next prime is 30855271. The reversal of 30855258 is 85255803.

It is not an unprimeable number, because it can be changed into a prime (30855257) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 28833 + ... + 29883.

It is an arithmetic number, because the mean of its divisors is an integer number (1600092).

Almost surely, 2^30855258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30855258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38402208).

30855258 is an abundant number, since it is smaller than the sum of its proper divisors (45949158).

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

30855258 is a wasteful number, since it uses less digits than its factorization.

30855258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299 (or 1296 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 30855258 is about 5554.7509395111. The cubic root of 30855258 is about 313.6483886551.

It can be divided in two parts, 30855 and 258, that added together give a palindrome (31113).

The spelling of 30855258 in words is "thirty million, eight hundred fifty-five thousand, two hundred fifty-eight".