68503428 has 192 divisors, whose sum is σ = 217907200. Its totient is φ = 18195840.

The previous prime is 68503411. The next prime is 68503447. The reversal of 68503428 is 82430586.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 68503392 and 68503401.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 867093 + ... + 867171.

Almost surely, 2^68503428 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 68503428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108953600).

68503428 is an abundant number, since it is smaller than the sum of its proper divisors (149403772).

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

68503428 is a wasteful number, since it uses less digits than its factorization.

68503428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 68503428 is about 8276.6797690862. The cubic root of 68503428 is about 409.1702990973.

The spelling of 68503428 in words is "sixty-eight million, five hundred three thousand, four hundred twenty-eight".