30505486 has 16 divisors (see below), whose sum is σ = 50388480. Its totient is φ = 13735480.

The previous prime is 30505483. The next prime is 30505487. The reversal of 30505486 is 68450503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30505481) 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 in 7 ways as a sum of consecutive naturals, for example, 4126 + ... + 8833.

It is an arithmetic number, because the mean of its divisors is an integer number (3149280).

Almost surely, 2^30505486 is an apocalyptic number.

30505486 is a deficient number, since it is larger than the sum of its proper divisors (19882994).

30505486 is a wasteful number, since it uses less digits than its factorization.

30505486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13079.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 30505486 is about 5523.1771653642. The cubic root of 30505486 is about 312.4587200940.

Adding to 30505486 its reverse (68450503), we get a palindrome (98955989).

The spelling of 30505486 in words is "thirty million, five hundred five thousand, four hundred eighty-six".