67423632 has 80 divisors (see below), whose sum is σ = 188023680. Its totient is φ = 20740096.

The previous prime is 67423627. The next prime is 67423651. The reversal of 67423632 is 23632476.

It is a junction number, because it is equal to n+sod(n) for n = 67423593 and 67423602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42469 + ... + 44027.

It is an arithmetic number, because the mean of its divisors is an integer number (2350296).

Almost surely, 2^67423632 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 67423632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94011840).

67423632 is an abundant number, since it is smaller than the sum of its proper divisors (120600048).

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

67423632 is a wasteful number, since it uses less digits than its factorization.

67423632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640 (or 1634 counting only the distinct ones).

The product of its digits is 36288, while the sum is 33.

The square root of 67423632 is about 8211.1894388085. The cubic root of 67423632 is about 407.0090329560.

Adding to 67423632 its product of digits (36288), we get a triangular number (67459920 = T₁₁₆₁₅).

The spelling of 67423632 in words is "sixty-seven million, four hundred twenty-three thousand, six hundred thirty-two".