67731044 has 18 divisors (see below), whose sum is σ = 123910710. Its totient is φ = 32392096.

The previous prime is 67731031. The next prime is 67731073. The reversal of 67731044 is 44013776.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 34668544 + 33062500 = 5888^2 + 5750^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 67731044.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13889 + ... + 18120.

Almost surely, 2^67731044 is an apocalyptic number.

It is an amenable number.

67731044 is a deficient number, since it is larger than the sum of its proper divisors (56179666).

67731044 is a wasteful number, since it uses less digits than its factorization.

67731044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32059 (or 32034 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 67731044 is about 8229.8872410258. The cubic root of 67731044 is about 407.6266689409.

The spelling of 67731044 in words is "sixty-seven million, seven hundred thirty-one thousand, forty-four".