67044940 has 48 divisors (see below), whose sum is σ = 153909504. Its totient is φ = 24422400.

The previous prime is 67044907. The next prime is 67044941. The reversal of 67044940 is 4944076.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 67044896 and 67044905.

It is not an unprimeable number, because it can be changed into a prime (67044941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7360 + ... + 13720.

It is an arithmetic number, because the mean of its divisors is an integer number (3206448).

Almost surely, 2^67044940 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 67044940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76954752).

67044940 is an abundant number, since it is smaller than the sum of its proper divisors (86864564).

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

67044940 is a wasteful number, since it uses less digits than its factorization.

67044940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6418 (or 6416 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 67044940 is about 8188.0974591171. The cubic root of 67044940 is about 406.2455986900.

The spelling of 67044940 in words is "sixty-seven million, forty-four thousand, nine hundred forty".