67438172 has 6 divisors (see below), whose sum is σ = 118016808. Its totient is φ = 33719084.

The previous prime is 67438169. The next prime is 67438177. The reversal of 67438172 is 27183476.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67438177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8429768 + ... + 8429775.

It is an arithmetic number, because the mean of its divisors is an integer number (19669468).

Almost surely, 2^67438172 is an apocalyptic number.

It is an amenable number.

67438172 is a deficient number, since it is larger than the sum of its proper divisors (50578636).

67438172 is a wasteful number, since it uses less digits than its factorization.

67438172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16859547 (or 16859545 counting only the distinct ones).

The product of its digits is 56448, while the sum is 38.

The square root of 67438172 is about 8212.0747682909. The cubic root of 67438172 is about 407.0382882077.

It can be divided in two parts, 67438 and 172, that multiplied together give a triangular number (11599336 = T₄₈₁₆).

The spelling of 67438172 in words is "sixty-seven million, four hundred thirty-eight thousand, one hundred seventy-two".