30072002 has 4 divisors (see below), whose sum is σ = 45108006. Its totient is φ = 15036000.

The previous prime is 30072001. The next prime is 30072013. The reversal of 30072002 is 20027003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20027003 = 17 ⋅1178059.

It can be written as a sum of positive squares in only one way, i.e., 23726641 + 6345361 = 4871^2 + 2519^2 .

It is not an unprimeable number, because it can be changed into a prime (30072001) by changing a digit.

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 as a sum of consecutive naturals, namely, 7517999 + ... + 7518002.

Almost surely, 2^30072002 is an apocalyptic number.

30072002 is a deficient number, since it is larger than the sum of its proper divisors (15036004).

30072002 is a wasteful number, since it uses less digits than its factorization.

30072002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15036003.

The product of its (nonzero) digits is 84, while the sum is 14.

The square root of 30072002 is about 5483.7944892200. The cubic root of 30072002 is about 310.9716374916.

Adding to 30072002 its reverse (20027003), we get a palindrome (50099005).

The spelling of 30072002 in words is "thirty million, seventy-two thousand, two".