67752240 has 80 divisors (see below), whose sum is σ = 211245408. Its totient is φ = 17963008.

The previous prime is 67752221. The next prime is 67752241. The reversal of 67752240 is 4225776.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (67752241) 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, 46564 + ... + 47996.

Almost surely, 2^67752240 is an apocalyptic number.

67752240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67752240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105622704).

67752240 is an abundant number, since it is smaller than the sum of its proper divisors (143493168).

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

67752240 is a wasteful number, since it uses less digits than its factorization.

67752240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646 (or 1640 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 67752240 is about 8231.1748857621. The cubic root of 67752240 is about 407.6691858983.

The spelling of 67752240 in words is "sixty-seven million, seven hundred fifty-two thousand, two hundred forty".