67438438 has 8 divisors (see below), whose sum is σ = 105555888. Its totient is φ = 32253144.

The previous prime is 67438421. The next prime is 67438447. The reversal of 67438438 is 83483476.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 67438394 and 67438403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 732981 + ... + 733072.

It is an arithmetic number, because the mean of its divisors is an integer number (13194486).

Almost surely, 2^67438438 is an apocalyptic number.

67438438 is a deficient number, since it is larger than the sum of its proper divisors (38117450).

67438438 is a wasteful number, since it uses less digits than its factorization.

67438438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466078.

The product of its digits is 387072, while the sum is 43.

The square root of 67438438 is about 8212.0909639385. The cubic root of 67438438 is about 407.0388233747.

It can be divided in two parts, 67438 and 438, that added together give a palindrome (67876).

The spelling of 67438438 in words is "sixty-seven million, four hundred thirty-eight thousand, four hundred thirty-eight".