67944438 has 24 divisors (see below), whose sum is σ = 153614448. Its totient is φ = 21663312.

The previous prime is 67944433. The next prime is 67944439. The reversal of 67944438 is 83444976.

It is a junction number, because it is equal to n+sod(n) for n = 67944393 and 67944402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67944433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81645 + ... + 82472.

It is an arithmetic number, because the mean of its divisors is an integer number (6400602).

Almost surely, 2^67944438 is an apocalyptic number.

67944438 is an abundant number, since it is smaller than the sum of its proper divisors (85670010).

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

67944438 is a wasteful number, since it uses less digits than its factorization.

67944438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164148 (or 164145 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 67944438 is about 8242.8416216739. The cubic root of 67944438 is about 408.0543108209.

The spelling of 67944438 in words is "sixty-seven million, nine hundred forty-four thousand, four hundred thirty-eight".