28735226 has 8 divisors (see below), whose sum is σ = 46418484. Its totient is φ = 13262400.

The previous prime is 28735193. The next prime is 28735237. The reversal of 28735226 is 62253782.

It can be written as a sum of positive squares in 2 ways, for example, as 23668225 + 5067001 = 4865^2 + 2251^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552575 + ... + 552626.

Almost surely, 2^28735226 is an apocalyptic number.

28735226 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28735226 is a deficient number, since it is larger than the sum of its proper divisors (17683258).

28735226 is a wasteful number, since it uses less digits than its factorization.

28735226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105216.

The product of its digits is 40320, while the sum is 35.

The square root of 28735226 is about 5360.5247877423. The cubic root of 28735226 is about 306.2937998718.

The spelling of 28735226 in words is "twenty-eight million, seven hundred thirty-five thousand, two hundred twenty-six".