28053222 has 16 divisors (see below), whose sum is σ = 56182080. Its totient is φ = 9338472.

The previous prime is 28053217. The next prime is 28053287. The reversal of 28053222 is 22235082.

It is a junction number, because it is equal to n+sod(n) for n = 28053192 and 28053201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2433 + ... + 7875.

It is an arithmetic number, because the mean of its divisors is an integer number (3511380).

Almost surely, 2^28053222 is an apocalyptic number.

28053222 is an abundant number, since it is smaller than the sum of its proper divisors (28128858).

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

28053222 is a wasteful number, since it uses less digits than its factorization.

28053222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6307.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 28053222 is about 5296.5292409275. The cubic root of 28053222 is about 303.8511722457.

The spelling of 28053222 in words is "twenty-eight million, fifty-three thousand, two hundred twenty-two".