67321492 has 36 divisors (see below), whose sum is σ = 138499284. Its totient is φ = 28546560.

The previous prime is 67321459. The next prime is 67321543. The reversal of 67321492 is 29412376.

It can be written as a sum of positive squares in 2 ways, for example, as 29203216 + 38118276 = 5404^2 + 6174^2 .

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 11 ways as a sum of consecutive naturals, for example, 17242 + ... + 20782.

Almost surely, 2^67321492 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 67321492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69249642).

67321492 is an abundant number, since it is smaller than the sum of its proper divisors (71177792).

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

67321492 is a wasteful number, since it uses less digits than its factorization.

67321492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3656 (or 3647 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The square root of 67321492 is about 8204.9675197407. The cubic root of 67321492 is about 406.8034032112.

The spelling of 67321492 in words is "sixty-seven million, three hundred twenty-one thousand, four hundred ninety-two".