28430884 has 24 divisors (see below), whose sum is σ = 50680448. Its totient is φ = 13953600.

The previous prime is 28430873. The next prime is 28430929. The reversal of 28430884 is 48803482.

It is an unprimeable number.

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, 61984 + ... + 62440.

Almost surely, 2^28430884 is an apocalyptic number.

It is an amenable number.

28430884 is a deficient number, since it is larger than the sum of its proper divisors (22249564).

28430884 is a wasteful number, since it uses less digits than its factorization.

28430884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715 (or 713 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 37.

The square root of 28430884 is about 5332.0618901134. The cubic root of 28430884 is about 305.2086147810.

The spelling of 28430884 in words is "twenty-eight million, four hundred thirty thousand, eight hundred eighty-four".