28090726 has 16 divisors (see below), whose sum is σ = 43292880. Its totient is φ = 13664800.

The previous prime is 28090703. The next prime is 28090729. The reversal of 28090726 is 62709082.

It is a junction number, because it is equal to n+sod(n) for n = 28090691 and 28090700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28090729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10740 + ... + 13096.

It is an arithmetic number, because the mean of its divisors is an integer number (2705805).

Almost surely, 2^28090726 is an apocalyptic number.

28090726 is a deficient number, since it is larger than the sum of its proper divisors (15202154).

28090726 is a wasteful number, since it uses less digits than its factorization.

28090726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2519.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 28090726 is about 5300.0684901235. The cubic root of 28090726 is about 303.9865168882.

The spelling of 28090726 in words is "twenty-eight million, ninety thousand, seven hundred twenty-six".