67087240 has 96 divisors (see below), whose sum is σ = 168920640. Its totient is φ = 23957120.

The previous prime is 67087217. The next prime is 67087243. The reversal of 67087240 is 4278076.

It is a hoax number, since the sum of its digits (34) 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 = 67087196 and 67087205.

It is not an unprimeable number, because it can be changed into a prime (67087243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 401637 + ... + 401803.

It is an arithmetic number, because the mean of its divisors is an integer number (1759590).

Almost surely, 2^67087240 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 67087240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84460320).

67087240 is an abundant number, since it is smaller than the sum of its proper divisors (101833400).

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

67087240 is a wasteful number, since it uses less digits than its factorization.

67087240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 67087240 is about 8190.6800694448. The cubic root of 67087240 is about 406.3310168992.

The spelling of 67087240 in words is "sixty-seven million, eighty-seven thousand, two hundred forty".