67140870 has 64 divisors (see below), whose sum is σ = 172488960. Its totient is φ = 16675200.

The previous prime is 67140869. The next prime is 67140883. The reversal of 67140870 is 7804176.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33805 + ... + 35735.

It is an arithmetic number, because the mean of its divisors is an integer number (2695140).

Almost surely, 2^67140870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67140870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86244480).

67140870 is an abundant number, since it is smaller than the sum of its proper divisors (105348090).

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

67140870 is a wasteful number, since it uses less digits than its factorization.

67140870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021.

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

The square root of 67140870 is about 8193.9532583485. The cubic root of 67140870 is about 406.4392626613.

The spelling of 67140870 in words is "sixty-seven million, one hundred forty thousand, eight hundred seventy".