28913950 has 24 divisors (see below), whose sum is σ = 57918168. Its totient is φ = 10675680.

The previous prime is 28913947. The next prime is 28913959. The reversal of 28913950 is 5931982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28913959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21592 + ... + 22891.

It is an arithmetic number, because the mean of its divisors is an integer number (2413257).

Almost surely, 2^28913950 is an apocalyptic number.

28913950 is an abundant number, since it is smaller than the sum of its proper divisors (29004218).

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

28913950 is a wasteful number, since it uses less digits than its factorization.

28913950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44508 (or 44503 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 28913950 is about 5377.1693296752. The cubic root of 28913950 is about 306.9275046596.

The spelling of 28913950 in words is "twenty-eight million, nine hundred thirteen thousand, nine hundred fifty".