30081002 has 12 divisors (see below), whose sum is σ = 52488450. Its totient is φ = 12891816.

The previous prime is 30081001. The next prime is 30081011. The reversal of 30081002 is 20018003.

It can be written as a sum of positive squares in only one way, i.e., 20894041 + 9186961 = 4571^2 + 3031^2 .

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (30081001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 153377 + ... + 153572.

Almost surely, 2^30081002 is an apocalyptic number.

30081002 is a deficient number, since it is larger than the sum of its proper divisors (22407448).

30081002 is a wasteful number, since it uses less digits than its factorization.

30081002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306965 (or 306958 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 30081002 is about 5484.6150275110. The cubic root of 30081002 is about 311.0026571045.

Adding to 30081002 its reverse (20018003), we get a palindrome (50099005).

The spelling of 30081002 in words is "thirty million, eighty-one thousand, two".