30381852 has 12 divisors (see below), whose sum is σ = 70891016. Its totient is φ = 10127280.

The previous prime is 30381851. The next prime is 30381853. The reversal of 30381852 is 25818303.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30381851) and next prime (30381853).

It is a tau number, because it is divible by the number of its divisors (12).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30381851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1265899 + ... + 1265922.

Almost surely, 2^30381852 is an apocalyptic number.

It is an amenable number.

30381852 is an abundant number, since it is smaller than the sum of its proper divisors (40509164).

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

30381852 is a wasteful number, since it uses less digits than its factorization.

30381852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2531828 (or 2531826 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 30381852 is about 5511.9735122731. The cubic root of 30381852 is about 312.0360329850.

The spelling of 30381852 in words is "thirty million, three hundred eighty-one thousand, eight hundred fifty-two".