28831950 has 168 divisors, whose sum is σ = 92703888. Its totient is φ = 6531840.

The previous prime is 28831939. The next prime is 28831963. The reversal of 28831950 is 5913882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 255094 + ... + 255206.

Almost surely, 2^28831950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28831950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46351944).

28831950 is an abundant number, since it is smaller than the sum of its proper divisors (63871938).

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

28831950 is a wasteful number, since it uses less digits than its factorization.

28831950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 28831950 is about 5369.5390863649. The cubic root of 28831950 is about 306.6370810042.

It can be divided in two parts, 288319 and 50, that added together give a square (288369 = 537²).

The spelling of 28831950 in words is "twenty-eight million, eight hundred thirty-one thousand, nine hundred fifty".