30042256 has 20 divisors (see below), whose sum is σ = 59163004. Its totient is φ = 14774400.

The previous prime is 30042239. The next prime is 30042263. The reversal of 30042256 is 65224003.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3168400 + 26873856 = 1780^2 + 5184^2 .

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, 14415 + ... + 16366.

Almost surely, 2^30042256 is an apocalyptic number.

It is an amenable number.

30042256 is a deficient number, since it is larger than the sum of its proper divisors (29120748).

30042256 is a wasteful number, since it uses less digits than its factorization.

30042256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30850 (or 30844 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 30042256 is about 5481.0816450770. The cubic root of 30042256 is about 310.8690701715.

Adding to 30042256 its reverse (65224003), we get a palindrome (95266259).

The spelling of 30042256 in words is "thirty million, forty-two thousand, two hundred fifty-six".