28820126 has 4 divisors (see below), whose sum is σ = 43230192. Its totient is φ = 14410062.

The previous prime is 28820119. The next prime is 28820149. The reversal of 28820126 is 62102882.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7205030 + ... + 7205033.

It is an arithmetic number, because the mean of its divisors is an integer number (10807548).

Almost surely, 2^28820126 is an apocalyptic number.

28820126 is a deficient number, since it is larger than the sum of its proper divisors (14410066).

28820126 is a wasteful number, since it uses less digits than its factorization.

28820126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14410065.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 28820126 is about 5368.4379478578. The cubic root of 28820126 is about 306.5951579225.

The spelling of 28820126 in words is "twenty-eight million, eight hundred twenty thousand, one hundred twenty-six".