67342878 has 48 divisors (see below), whose sum is σ = 154452480. Its totient is φ = 21146832.

The previous prime is 67342823. The next prime is 67342879. The reversal of 67342878 is 87824376.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67342879) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75825 + ... + 76707.

It is an arithmetic number, because the mean of its divisors is an integer number (3217760).

Almost surely, 2^67342878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67342878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77226240).

67342878 is an abundant number, since it is smaller than the sum of its proper divisors (87109602).

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

67342878 is a wasteful number, since it uses less digits than its factorization.

67342878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133 (or 1130 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 67342878 is about 8206.2706511545. The cubic root of 67342878 is about 406.8464750260.

The spelling of 67342878 in words is "sixty-seven million, three hundred forty-two thousand, eight hundred seventy-eight".