67201812 has 60 divisors (see below), whose sum is σ = 176690976. Its totient is φ = 22271760.

The previous prime is 67201811. The next prime is 67201817. The reversal of 67201812 is 21810276.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67201811) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 67873 + ... + 68855.

Almost surely, 2^67201812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67201812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88345488).

67201812 is an abundant number, since it is smaller than the sum of its proper divisors (109489164).

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

67201812 is a wasteful number, since it uses less digits than its factorization.

67201812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210 (or 1199 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 67201812 is about 8197.6711327059. The cubic root of 67201812 is about 406.5621968800.

The spelling of 67201812 in words is "sixty-seven million, two hundred one thousand, eight hundred twelve".