67944136 has 32 divisors (see below), whose sum is σ = 140910840. Its totient is φ = 30509568.

The previous prime is 67944127. The next prime is 67944137. The reversal of 67944136 is 63144976.

It can be written as a sum of positive squares in 4 ways, for example, as 47748100 + 20196036 = 6910^2 + 4494^2 .

It is not an unprimeable number, because it can be changed into a prime (67944137) 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, 4981 + ... + 12676.

Almost surely, 2^67944136 is an apocalyptic number.

It is an amenable number.

67944136 is an abundant number, since it is smaller than the sum of its proper divisors (72966704).

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

67944136 is a wasteful number, since it uses less digits than its factorization.

67944136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17713 (or 17709 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 67944136 is about 8242.8233027283. The cubic root of 67944136 is about 408.0537062456.

The spelling of 67944136 in words is "sixty-seven million, nine hundred forty-four thousand, one hundred thirty-six".