30887434 has 8 divisors (see below), whose sum is σ = 46781280. Its totient is φ = 15293676.

The previous prime is 30887401. The next prime is 30887443. The reversal of 30887434 is 43478803.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 30887393 and 30887402.

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 3 ways as a sum of consecutive naturals, for example, 74764 + ... + 75175.

It is an arithmetic number, because the mean of its divisors is an integer number (5847660).

Almost surely, 2^30887434 is an apocalyptic number.

30887434 is a deficient number, since it is larger than the sum of its proper divisors (15893846).

30887434 is a wasteful number, since it uses less digits than its factorization.

30887434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150044.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 30887434 is about 5557.6464443144. The cubic root of 30887434 is about 313.7573754238.

The spelling of 30887434 in words is "thirty million, eight hundred eighty-seven thousand, four hundred thirty-four".