10642228 has 6 divisors (see below), whose sum is σ = 18623906. Its totient is φ = 5321112.

The previous prime is 10642211. The next prime is 10642231. The reversal of 10642228 is 82224601.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10061584 + 580644 = 3172^2 + 762^2 .

It is a super-2 number, since 2×10642228² = 226514033607968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330275 + ... + 1330282.

Almost surely, 2^10642228 is an apocalyptic number.

It is an amenable number.

10642228 is a deficient number, since it is larger than the sum of its proper divisors (7981678).

10642228 is a wasteful number, since it uses less digits than its factorization.

10642228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660561 (or 2660559 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 10642228 is about 3262.2427867956. The cubic root of 10642228 is about 219.9602407489.

Adding to 10642228 its reverse (82224601), we get a palindrome (92866829).

The spelling of 10642228 in words is "ten million, six hundred forty-two thousand, two hundred twenty-eight".