30661192 has 16 divisors (see below), whose sum is σ = 57668400. Its totient is φ = 15282960.

The previous prime is 30661187. The next prime is 30661237. The reversal of 30661192 is 29116603.

It is a self number, because there is not a number n which added to its sum of digits gives 30661192.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3142 + ... + 8437.

It is an arithmetic number, because the mean of its divisors is an integer number (3604275).

Almost surely, 2^30661192 is an apocalyptic number.

It is an amenable number.

30661192 is a deficient number, since it is larger than the sum of its proper divisors (27007208).

30661192 is a wasteful number, since it uses less digits than its factorization.

30661192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11916 (or 11912 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 30661192 is about 5537.2549155696. The cubic root of 30661192 is about 312.9894350771.

Adding to 30661192 its reverse (29116603), we get a palindrome (59777795).

The spelling of 30661192 in words is "thirty million, six hundred sixty-one thousand, one hundred ninety-two".