67221232 has 40 divisors (see below), whose sum is σ = 140865984. Its totient is φ = 30891264.

The previous prime is 67221229. The next prime is 67221241. The reversal of 67221232 is 23212276.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 67221197 and 67221206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60393 + ... + 61495.

Almost surely, 2^67221232 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 67221232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70432992).

67221232 is an abundant number, since it is smaller than the sum of its proper divisors (73644752).

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

67221232 is a wasteful number, since it uses less digits than its factorization.

67221232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417 (or 1411 counting only the distinct ones).

The product of its digits is 2016, while the sum is 25.

The square root of 67221232 is about 8198.8555298895. The cubic root of 67221232 is about 406.6013559305.

It can be divided in two parts, 672 and 21232, that added together give a square (21904 = 148²).

The spelling of 67221232 in words is "sixty-seven million, two hundred twenty-one thousand, two hundred thirty-two".