28430896 has 40 divisors (see below), whose sum is σ = 60464880. Its totient is φ = 12869376.

The previous prime is 28430873. The next prime is 28430929. The reversal of 28430896 is 69803482.

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, 9735 + ... + 12313.

It is an arithmetic number, because the mean of its divisors is an integer number (1511622).

Almost surely, 2^28430896 is an apocalyptic number.

28430896 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28430896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30232440).

28430896 is an abundant number, since it is smaller than the sum of its proper divisors (32033984).

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

28430896 is a wasteful number, since it uses less digits than its factorization.

28430896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2653 (or 2647 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 28430896 is about 5332.0630153816. The cubic root of 28430896 is about 305.2086577214.

The spelling of 28430896 in words is "twenty-eight million, four hundred thirty thousand, eight hundred ninety-six".