28225802 has 16 divisors (see below), whose sum is σ = 47263392. Its totient is φ = 12531120.

The previous prime is 28225793. The next prime is 28225817. The reversal of 28225802 is 20852282.

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, 13973 + ... + 15864.

It is an arithmetic number, because the mean of its divisors is an integer number (2953962).

Almost surely, 2^28225802 is an apocalyptic number.

28225802 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28225802 is a deficient number, since it is larger than the sum of its proper divisors (19037590).

28225802 is a wasteful number, since it uses less digits than its factorization.

28225802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29893.

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 28225802 is about 5312.7960623385. The cubic root of 28225802 is about 304.4729839968.

The spelling of 28225802 in words is "twenty-eight million, two hundred twenty-five thousand, eight hundred two".