28835430 has 64 divisors (see below), whose sum is σ = 75333888. Its totient is φ = 7021440.

The previous prime is 28835357. The next prime is 28835431. The reversal of 28835430 is 3453882.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28835391 and 28835400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28835431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41385 + ... + 42075.

It is an arithmetic number, because the mean of its divisors is an integer number (1177092).

Almost surely, 2^28835430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28835430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37666944).

28835430 is an abundant number, since it is smaller than the sum of its proper divisors (46498458).

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

28835430 is a wasteful number, since it uses less digits than its factorization.

28835430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 28835430 is about 5369.8631267473. The cubic root of 28835430 is about 306.6494174818.

The spelling of 28835430 in words is "twenty-eight million, eight hundred thirty-five thousand, four hundred thirty".