30800190 has 16 divisors (see below), whose sum is σ = 73920528. Its totient is φ = 8213376.

The previous prime is 30800177. The next prime is 30800191. The reversal of 30800190 is 9100803.

It is a super-2 number, since 2×30800190² = 1897303408072200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30800191) 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, 513307 + ... + 513366.

It is an arithmetic number, because the mean of its divisors is an integer number (4620033).

Almost surely, 2^30800190 is an apocalyptic number.

30800190 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30800190 is an abundant number, since it is smaller than the sum of its proper divisors (43120338).

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

30800190 is a wasteful number, since it uses less digits than its factorization.

30800190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026683.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 30800190 is about 5549.7918879900. The cubic root of 30800190 is about 313.4616860096.

Adding to 30800190 its reverse (9100803), we get a palindrome (39900993).

The spelling of 30800190 in words is "thirty million, eight hundred thousand, one hundred ninety".