68662428 has 48 divisors (see below), whose sum is σ = 169290240. Its totient is φ = 21600000.

The previous prime is 68662411. The next prime is 68662463. The reversal of 68662428 is 82426686.

It is a self number, because there is not a number n which added to its sum of digits gives 68662428.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91053 + ... + 91803.

It is an arithmetic number, because the mean of its divisors is an integer number (3526880).

Almost surely, 2^68662428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68662428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84645120).

68662428 is an abundant number, since it is smaller than the sum of its proper divisors (100627812).

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

68662428 is a wasteful number, since it uses less digits than its factorization.

68662428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178 (or 1176 counting only the distinct ones).

The product of its digits is 221184, while the sum is 42.

The square root of 68662428 is about 8286.2795028891. The cubic root of 68662428 is about 409.4866229654.

The spelling of 68662428 in words is "sixty-eight million, six hundred sixty-two thousand, four hundred twenty-eight".