67078140 has 48 divisors (see below), whose sum is σ = 189695520. Its totient is φ = 17708800.

The previous prime is 67078139. The next prime is 67078147. The reversal of 67078140 is 4187076.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67078147) 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, 526 + ... + 11594.

It is an arithmetic number, because the mean of its divisors is an integer number (3951990).

Almost surely, 2^67078140 is an apocalyptic number.

67078140 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 67078140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94847760).

67078140 is an abundant number, since it is smaller than the sum of its proper divisors (122617380).

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

67078140 is a wasteful number, since it uses less digits than its factorization.

67078140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11182 (or 11180 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 67078140 is about 8190.1245411776. The cubic root of 67078140 is about 406.3126439098.

The spelling of 67078140 in words is "sixty-seven million, seventy-eight thousand, one hundred forty".