67881042 has 12 divisors (see below), whose sum is σ = 147075630. Its totient is φ = 22627008.

The previous prime is 67881029. The next prime is 67881061. The reversal of 67881042 is 24018876.

It can be written as a sum of positive squares in only one way, i.e., 36978561 + 30902481 = 6081^2 + 5559^2 .

It is a junction number, because it is equal to n+sod(n) for n = 67880988 and 67881006.

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, 1885567 + ... + 1885602.

Almost surely, 2^67881042 is an apocalyptic number.

67881042 is an abundant number, since it is smaller than the sum of its proper divisors (79194588).

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

67881042 is a wasteful number, since it uses less digits than its factorization.

67881042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3771177 (or 3771174 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 67881042 is about 8238.9952057275. The cubic root of 67881042 is about 407.9273587515.

The spelling of 67881042 in words is "sixty-seven million, eight hundred eighty-one thousand, forty-two".