68073632 has 36 divisors (see below), whose sum is σ = 147319578. Its totient is φ = 30940800.

The previous prime is 68073631. The next prime is 68073641. The reversal of 68073632 is 23637086.

It can be written as a sum of positive squares in only one way, i.e., 63425296 + 4648336 = 7964^2 + 2156^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68073592 and 68073601.

It is not an unprimeable number, because it can be changed into a prime (68073631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4919 + ... + 12662.

Almost surely, 2^68073632 is an apocalyptic number.

It is an amenable number.

68073632 is an abundant number, since it is smaller than the sum of its proper divisors (79245946).

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

68073632 is a wasteful number, since it uses less digits than its factorization.

68073632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17613 (or 17594 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 68073632 is about 8250.6746390826. The cubic root of 68073632 is about 408.3127807879.

The spelling of 68073632 in words is "sixty-eight million, seventy-three thousand, six hundred thirty-two".