30042987 has 16 divisors (see below), whose sum is σ = 43276800. Its totient is φ = 18428832.

The previous prime is 30042983. The next prime is 30043021. The reversal of 30042987 is 78924003.

It is not a de Polignac number, because 30042987 - 2² = 30042983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30042983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13264 + ... + 15362.

It is an arithmetic number, because the mean of its divisors is an integer number (2704800).

Almost surely, 2^30042987 is an apocalyptic number.

30042987 is a deficient number, since it is larger than the sum of its proper divisors (13233813).

30042987 is a wasteful number, since it uses less digits than its factorization.

30042987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2482.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 30042987 is about 5481.1483285895. The cubic root of 30042987 is about 310.8715915473.

The spelling of 30042987 in words is "thirty million, forty-two thousand, nine hundred eighty-seven".