30681052 has 12 divisors (see below), whose sum is σ = 53856376. Its totient is φ = 15293520.

The previous prime is 30681047. The next prime is 30681061. The reversal of 30681052 is 25018603.

It is a happy number.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10263 + ... + 12910.

Almost surely, 2^30681052 is an apocalyptic number.

It is an amenable number.

30681052 is a deficient number, since it is larger than the sum of its proper divisors (23175324).

30681052 is a wasteful number, since it uses less digits than its factorization.

30681052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23508 (or 23506 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 30681052 is about 5539.0479326325. The cubic root of 30681052 is about 313.0569974491.

Adding to 30681052 its reverse (25018603), we get a palindrome (55699655).

The spelling of 30681052 in words is "thirty million, six hundred eighty-one thousand, fifty-two".