68221032 has 32 divisors (see below), whose sum is σ = 186058080. Its totient is φ = 20672960.

The previous prime is 68221009. The next prime is 68221033. The reversal of 68221032 is 23012286.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 68220993 and 68221011.

It is not an unprimeable number, because it can be changed into a prime (68221033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128943 + ... + 129470.

It is an arithmetic number, because the mean of its divisors is an integer number (5814315).

Almost surely, 2^68221032 is an apocalyptic number.

It is an amenable number.

68221032 is an abundant number, since it is smaller than the sum of its proper divisors (117837048).

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

68221032 is a wasteful number, since it uses less digits than its factorization.

68221032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258433 (or 258429 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 68221032 is about 8259.6024117387. The cubic root of 68221032 is about 408.6072752175.

The spelling of 68221032 in words is "sixty-eight million, two hundred twenty-one thousand, thirty-two".