30041992 has 16 divisors (see below), whose sum is σ = 59642460. Its totient is φ = 14137344.

The previous prime is 30041989. The next prime is 30042011. The reversal of 30041992 is 29914003.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29877156 + 164836 = 5466^2 + 406^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30041992.

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, 110313 + ... + 110584.

Almost surely, 2^30041992 is an apocalyptic number.

It is an amenable number.

30041992 is a deficient number, since it is larger than the sum of its proper divisors (29600468).

30041992 is a wasteful number, since it uses less digits than its factorization.

30041992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220920 (or 220916 counting only the distinct ones).

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

The square root of 30041992 is about 5481.0575621863. The cubic root of 30041992 is about 310.8681595689.

Adding to 30041992 its reverse (29914003), we get a palindrome (59955995).

The spelling of 30041992 in words is "thirty million, forty-one thousand, nine hundred ninety-two".