28226610 has 32 divisors (see below), whose sum is σ = 75271680. Its totient is φ = 7527024.

The previous prime is 28226587. The next prime is 28226633. The reversal of 28226610 is 1662282.

28226610 is a `hidden beast` number, since 28 + 2 + 26 + 610 = 666.

It is an interprime number because it is at equal distance from previous prime (28226587) and next prime (28226633).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 15 ways as a sum of consecutive naturals, for example, 52002 + ... + 52541.

It is an arithmetic number, because the mean of its divisors is an integer number (2352240).

Almost surely, 2^28226610 is an apocalyptic number.

28226610 is an abundant number, since it is smaller than the sum of its proper divisors (47045070).

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

28226610 is a wasteful number, since it uses less digits than its factorization.

28226610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104559 (or 104553 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 28226610 is about 5312.8721046154. The cubic root of 28226610 is about 304.4758892797.

Adding to 28226610 its reverse (1662282), we get a palindrome (29888892).

The spelling of 28226610 in words is "twenty-eight million, two hundred twenty-six thousand, six hundred ten".