30100806 has 24 divisors (see below), whose sum is σ = 66810744. Its totient is φ = 9788640.

The previous prime is 30100799. The next prime is 30100841. The reversal of 30100806 is 60800103.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 19656 + ... + 21131.

It is an arithmetic number, because the mean of its divisors is an integer number (2783781).

Almost surely, 2^30100806 is an apocalyptic number.

30100806 is an abundant number, since it is smaller than the sum of its proper divisors (36709938).

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

30100806 is a wasteful number, since it uses less digits than its factorization.

30100806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40836 (or 40833 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 30100806 is about 5486.4201443200. The cubic root of 30100806 is about 311.0708922594.

Adding to 30100806 its reverse (60800103), we get a palindrome (90900909).

The spelling of 30100806 in words is "thirty million, one hundred thousand, eight hundred six".