10638228 has 12 divisors (see below), whose sum is σ = 24822560. Its totient is φ = 3546072.

The previous prime is 10638227. The next prime is 10638241. The reversal of 10638228 is 82283601.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×10638228² = 226343789959968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10638195 and 10638204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10638223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443248 + ... + 443271.

Almost surely, 2^10638228 is an apocalyptic number.

It is an amenable number.

10638228 is an abundant number, since it is smaller than the sum of its proper divisors (14184332).

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

10638228 is a wasteful number, since it uses less digits than its factorization.

10638228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886526 (or 886524 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 10638228 is about 3261.6296540227. The cubic root of 10638228 is about 219.9326791262.

The spelling of 10638228 in words is "ten million, six hundred thirty-eight thousand, two hundred twenty-eight".