68635228 has 24 divisors (see below), whose sum is σ = 126907200. Its totient is φ = 32426688.

The previous prime is 68635213. The next prime is 68635247. The reversal of 68635228 is 82253686.

It is a super-2 number, since 2×68635228² = 9421589045223968, 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 in 7 ways as a sum of consecutive naturals, for example, 843 + ... + 11746.

It is an arithmetic number, because the mean of its divisors is an integer number (5287800).

Almost surely, 2^68635228 is an apocalyptic number.

It is an amenable number.

68635228 is a deficient number, since it is larger than the sum of its proper divisors (58271972).

68635228 is a wasteful number, since it uses less digits than its factorization.

68635228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12669 (or 12667 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 68635228 is about 8284.6380729637. The cubic root of 68635228 is about 409.4325443495.

The spelling of 68635228 in words is "sixty-eight million, six hundred thirty-five thousand, two hundred twenty-eight".