28885630 has 24 divisors (see below), whose sum is σ = 52706808. Its totient is φ = 11397888.

The previous prime is 28885627. The next prime is 28885651. The reversal of 28885630 is 3658882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93937 + ... + 94243.

It is an arithmetic number, because the mean of its divisors is an integer number (2196117).

Almost surely, 2^28885630 is an apocalyptic number.

28885630 is a deficient number, since it is larger than the sum of its proper divisors (23821178).

28885630 is an equidigital number, since it uses as much as digits as its factorization.

28885630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 28885630 is about 5374.5353287517. The cubic root of 28885630 is about 306.8272643909.

The spelling of 28885630 in words is "twenty-eight million, eight hundred eighty-five thousand, six hundred thirty".