28201926 has 16 divisors (see below), whose sum is σ = 56587824. Its totient is φ = 9369984.

The previous prime is 28201919. The next prime is 28201939. The reversal of 28201926 is 62910282.

It is a junction number, because it is equal to n+sod(n) for n = 28201893 and 28201902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5631 + ... + 9386.

It is an arithmetic number, because the mean of its divisors is an integer number (3536739).

Almost surely, 2^28201926 is an apocalyptic number.

28201926 is an abundant number, since it is smaller than the sum of its proper divisors (28385898).

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

28201926 is a wasteful number, since it uses less digits than its factorization.

28201926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15335.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 28201926 is about 5310.5485592357. The cubic root of 28201926 is about 304.3871092867.

The spelling of 28201926 in words is "twenty-eight million, two hundred one thousand, nine hundred twenty-six".