28226352 has 120 divisors (see below), whose sum is σ = 92619072. Its totient is φ = 7324800.

The previous prime is 28226351. The next prime is 28226353. The reversal of 28226352 is 25362282.

It is an interprime number because it is at equal distance from previous prime (28226351) and next prime (28226353).

It is not an unprimeable number, because it can be changed into a prime (28226351) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 25327 + ... + 26417.

Almost surely, 2^28226352 is an apocalyptic number.

28226352 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28226352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46309536).

28226352 is an abundant number, since it is smaller than the sum of its proper divisors (64392720).

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

28226352 is a wasteful number, since it uses less digits than its factorization.

28226352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127 (or 1114 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 28226352 is about 5312.8478239076. The cubic root of 28226352 is about 304.4749616088.

The spelling of 28226352 in words is "twenty-eight million, two hundred twenty-six thousand, three hundred fifty-two".