67424172 has 48 divisors (see below), whose sum is σ = 164959872. Its totient is φ = 21409920.

The previous prime is 67424171. The next prime is 67424191. The reversal of 67424172 is 27142476.

It is not an unprimeable number, because it can be changed into a prime (67424171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19563 + ... + 22749.

It is an arithmetic number, because the mean of its divisors is an integer number (3436664).

Almost surely, 2^67424172 is an apocalyptic number.

It is an amenable number.

67424172 is an abundant number, since it is smaller than the sum of its proper divisors (97535700).

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

67424172 is a wasteful number, since it uses less digits than its factorization.

67424172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278 (or 3276 counting only the distinct ones).

The product of its digits is 18816, while the sum is 33.

The square root of 67424172 is about 8211.2223207023. Note that the first 3 decimals coincide. The cubic root of 67424172 is about 407.0101195398.

The spelling of 67424172 in words is "sixty-seven million, four hundred twenty-four thousand, one hundred seventy-two".