30884280 has 64 divisors (see below), whose sum is σ = 105891840. Its totient is φ = 7059072.

The previous prime is 30884279. The next prime is 30884299. The reversal of 30884280 is 8248803.

It is a super-2 number, since 2×30884280² = 1907677502236800, which contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 17544 + ... + 19223.

It is an arithmetic number, because the mean of its divisors is an integer number (1654560).

Almost surely, 2^30884280 is an apocalyptic number.

30884280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30884280 is an abundant number, since it is smaller than the sum of its proper divisors (75007560).

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

30884280 is a wasteful number, since it uses less digits than its factorization.

30884280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36788 (or 36784 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 30884280 is about 5557.3626838636. The cubic root of 30884280 is about 313.7466955203.

The spelling of 30884280 in words is "thirty million, eight hundred eighty-four thousand, two hundred eighty".