28140950 has 24 divisors (see below), whose sum is σ = 55422792. Its totient is φ = 10593920.

The previous prime is 28140949. The next prime is 28140971. The reversal of 28140950 is 5904182.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

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, 15704 + ... + 17403.

It is an arithmetic number, because the mean of its divisors is an integer number (2309283).

Almost surely, 2^28140950 is an apocalyptic number.

28140950 is a deficient number, since it is larger than the sum of its proper divisors (27281842).

28140950 is a wasteful number, since it uses less digits than its factorization.

28140950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33136 (or 33131 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 28140950 is about 5304.8044261782. The cubic root of 28140950 is about 304.1675769869.

The spelling of 28140950 in words is "twenty-eight million, one hundred forty thousand, nine hundred fifty".