68628732 has 48 divisors (see below), whose sum is σ = 166656000. Its totient is φ = 21954240.

The previous prime is 68628719. The next prime is 68628737. The reversal of 68628732 is 23782686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68628737) by changing a digit.

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, 68757 + ... + 69747.

It is an arithmetic number, because the mean of its divisors is an integer number (3472000).

Almost surely, 2^68628732 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 68628732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83328000).

68628732 is an abundant number, since it is smaller than the sum of its proper divisors (98027268).

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

68628732 is a wasteful number, since it uses less digits than its factorization.

68628732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226 (or 1224 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 68628732 is about 8284.2460127642. The cubic root of 68628732 is about 409.4196269901.

The spelling of 68628732 in words is "sixty-eight million, six hundred twenty-eight thousand, seven hundred thirty-two".