30519980 has 12 divisors (see below), whose sum is σ = 64092000. Its totient is φ = 12207984.

The previous prime is 30519959. The next prime is 30520019. The reversal of 30519980 is 8991503.

It is a self number, because there is not a number n which added to its sum of digits gives 30519980.

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, 762980 + ... + 763019.

It is an arithmetic number, because the mean of its divisors is an integer number (5341000).

Almost surely, 2^30519980 is an apocalyptic number.

It is an amenable number.

30519980 is an abundant number, since it is smaller than the sum of its proper divisors (33572020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30519980 is a wasteful number, since it uses less digits than its factorization.

30519980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526008 (or 1526006 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 30519980 is about 5524.4891166514. The cubic root of 30519980 is about 312.5081981849.

It can be divided in two parts, 3051 and 9980, that added together give a palindrome (13031).

The spelling of 30519980 in words is "thirty million, five hundred nineteen thousand, nine hundred eighty".