30780002 has 16 divisors (see below), whose sum is σ = 51540192. Its totient is φ = 13665120.

The previous prime is 30779977. The next prime is 30780011. The reversal of 30780002 is 20008703.

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 7 ways as a sum of consecutive naturals, for example, 15323 + ... + 17214.

It is an arithmetic number, because the mean of its divisors is an integer number (3221262).

Almost surely, 2^30780002 is an apocalyptic number.

30780002 is a deficient number, since it is larger than the sum of its proper divisors (20760190).

30780002 is a wasteful number, since it uses less digits than its factorization.

30780002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32593.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 30780002 is about 5547.9727829181. The cubic root of 30780002 is about 313.3931848345.

Adding to 30780002 its reverse (20008703), we get a palindrome (50788705).

The spelling of 30780002 in words is "thirty million, seven hundred eighty thousand, two".