28924650 has 144 divisors (see below), whose sum is σ = 87048000. Its totient is φ = 6842880.

The previous prime is 28924613. The next prime is 28924657. The reversal of 28924650 is 5642982.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28924657) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 145251 + ... + 145449.

It is an arithmetic number, because the mean of its divisors is an integer number (604500).

Almost surely, 2^28924650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28924650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43524000).

28924650 is an abundant number, since it is smaller than the sum of its proper divisors (58123350).

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

28924650 is a wasteful number, since it uses less digits than its factorization.

28924650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 28924650 is about 5378.1641849241. The cubic root of 28924650 is about 306.9653608879.

The spelling of 28924650 in words is "twenty-eight million, nine hundred twenty-four thousand, six hundred fifty".