30884120 has 32 divisors (see below), whose sum is σ = 73148400. Its totient is φ = 11703168.

The previous prime is 30884059. The next prime is 30884129. The reversal of 30884120 is 2148803.

It is a self number, because there is not a number n which added to its sum of digits gives 30884120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30884129) 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, 19559 + ... + 21078.

Almost surely, 2^30884120 is an apocalyptic number.

It is an amenable number.

30884120 is an abundant number, since it is smaller than the sum of its proper divisors (42264280).

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

30884120 is a wasteful number, since it uses less digits than its factorization.

30884120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40667 (or 40663 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 30884120 is about 5557.3482885275. The cubic root of 30884120 is about 313.7461537176.

The spelling of 30884120 in words is "thirty million, eight hundred eighty-four thousand, one hundred twenty".