28101950 has 24 divisors (see below), whose sum is σ = 55022520. Its totient is φ = 10648800.

The previous prime is 28101949. The next prime is 28101971. The reversal of 28101950 is 5910182.

It is a happy number.

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, 13841 + ... + 15740.

It is an arithmetic number, because the mean of its divisors is an integer number (2292605).

Almost surely, 2^28101950 is an apocalyptic number.

28101950 is a deficient number, since it is larger than the sum of its proper divisors (26920570).

28101950 is a wasteful number, since it uses less digits than its factorization.

28101950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29612 (or 29607 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 28101950 is about 5301.1272386163. The cubic root of 28101950 is about 304.0269986986.

The spelling of 28101950 in words is "twenty-eight million, one hundred one thousand, nine hundred fifty".