68432528 has 40 divisors (see below), whose sum is σ = 140318400. Its totient is φ = 32241024.

The previous prime is 68432503. The next prime is 68432549. The reversal of 68432528 is 82523486.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 68432491 and 68432500.

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, 69125 + ... + 70107.

It is an arithmetic number, because the mean of its divisors is an integer number (3507960).

Almost surely, 2^68432528 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 68432528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70159200).

68432528 is an abundant number, since it is smaller than the sum of its proper divisors (71885872).

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

68432528 is a wasteful number, since it uses less digits than its factorization.

68432528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239 (or 1233 counting only the distinct ones).

The product of its digits is 92160, while the sum is 38.

The square root of 68432528 is about 8272.3955418005. The cubic root of 68432528 is about 409.0290887025.

The spelling of 68432528 in words is "sixty-eight million, four hundred thirty-two thousand, five hundred twenty-eight".