68542628 has 36 divisors (see below), whose sum is σ = 150687936. Its totient is φ = 26703600.

The previous prime is 68542627. The next prime is 68542637. The reversal of 68542628 is 82624586.

It is not an unprimeable number, because it can be changed into a prime (68542627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6728 + ... + 13503.

It is an arithmetic number, because the mean of its divisors is an integer number (4185776).

Almost surely, 2^68542628 is an apocalyptic number.

It is an amenable number.

68542628 is an abundant number, since it is smaller than the sum of its proper divisors (82145308).

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

68542628 is a wasteful number, since it uses less digits than its factorization.

68542628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20264 (or 20251 counting only the distinct ones).

The product of its digits is 184320, while the sum is 41.

The square root of 68542628 is about 8279.0475297585. The cubic root of 68542628 is about 409.2483312859.

The spelling of 68542628 in words is "sixty-eight million, five hundred forty-two thousand, six hundred twenty-eight".