30195936 has 48 divisors (see below), whose sum is σ = 88074000. Its totient is φ = 10065024.

The previous prime is 30195929. The next prime is 30195937. The reversal of 30195936 is 63959103.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 30195936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30195937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16611 + ... + 18338.

It is an arithmetic number, because the mean of its divisors is an integer number (1834875).

Almost surely, 2^30195936 is an apocalyptic number.

30195936 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30195936 is an abundant number, since it is smaller than the sum of its proper divisors (57878064).

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

30195936 is a wasteful number, since it uses less digits than its factorization.

30195936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34968 (or 34954 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 36.

The square root of 30195936 is about 5495.0828929144. The cubic root of 30195936 is about 311.3982484374.

The spelling of 30195936 in words is "thirty million, one hundred ninety-five thousand, nine hundred thirty-six".