28430336 has 52 divisors (see below), whose sum is σ = 62120544. Its totient is φ = 12902400.

The previous prime is 28430333. The next prime is 28430357. The reversal of 28430336 is 63303482.

It is a junction number, because it is equal to n+sod(n) for n = 28430299 and 28430308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28430333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44741 + ... + 45371.

Almost surely, 2^28430336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28430336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31060272).

28430336 is an abundant number, since it is smaller than the sum of its proper divisors (33690208).

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

28430336 is an equidigital number, since it uses as much as digits as its factorization.

28430336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 28430336 is about 5332.0105026153. The cubic root of 28430336 is about 305.2066538220.

The spelling of 28430336 in words is "twenty-eight million, four hundred thirty thousand, three hundred thirty-six".