67200138 has 16 divisors (see below), whose sum is σ = 149333760. Its totient is φ = 22400028.

The previous prime is 67200137. The next prime is 67200179. The reversal of 67200138 is 83100276.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (67200137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 622170 + ... + 622277.

It is an arithmetic number, because the mean of its divisors is an integer number (9333360).

Almost surely, 2^67200138 is an apocalyptic number.

67200138 is an abundant number, since it is smaller than the sum of its proper divisors (82133622).

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

67200138 is a wasteful number, since it uses less digits than its factorization.

67200138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244458 (or 1244452 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 67200138 is about 8197.5690299015. The cubic root of 67200138 is about 406.5588210248.

The spelling of 67200138 in words is "sixty-seven million, two hundred thousand, one hundred thirty-eight".