30199836 has 24 divisors (see below), whose sum is σ = 71260560. Its totient is φ = 9953152.

The previous prime is 30199789. The next prime is 30199843. The reversal of 30199836 is 63899103.

It is a junction number, because it is equal to n+sod(n) for n = 30199794 and 30199803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13071 + ... + 15206.

It is an arithmetic number, because the mean of its divisors is an integer number (2969190).

Almost surely, 2^30199836 is an apocalyptic number.

It is an amenable number.

30199836 is an abundant number, since it is smaller than the sum of its proper divisors (41060724).

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

30199836 is a wasteful number, since it uses less digits than its factorization.

30199836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28373 (or 28371 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 30199836 is about 5495.4377441656. The cubic root of 30199836 is about 311.4116542247.

The spelling of 30199836 in words is "thirty million, one hundred ninety-nine thousand, eight hundred thirty-six".