30498986 has 16 divisors (see below), whose sum is σ = 55359936. Its totient is φ = 12302016.

The previous prime is 30498983. The next prime is 30498991. The reversal of 30498986 is 68989403.

It is a self number, because there is not a number n which added to its sum of digits gives 30498986.

It is not an unprimeable number, because it can be changed into a prime (30498983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63836 + ... + 64311.

It is an arithmetic number, because the mean of its divisors is an integer number (3459996).

Almost surely, 2^30498986 is an apocalyptic number.

30498986 is a deficient number, since it is larger than the sum of its proper divisors (24860950).

30498986 is a wasteful number, since it uses less digits than its factorization.

30498986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128173.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 30498986 is about 5522.5887045841. The cubic root of 30498986 is about 312.4365259882.

The spelling of 30498986 in words is "thirty million, four hundred ninety-eight thousand, nine hundred eighty-six".