140070870 has 160 divisors (see below), whose sum is σ = 399880800. Its totient is φ = 35126784.

The previous prime is 140070839. The next prime is 140070881. The reversal of 140070870 is 78070041.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1573786 + ... + 1573874.

It is an arithmetic number, because the mean of its divisors is an integer number (2499255).

Almost surely, 2^140070870 is an apocalyptic number.

140070870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140070870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199940400).

140070870 is an abundant number, since it is smaller than the sum of its proper divisors (259809930).

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

140070870 is a wasteful number, since it uses less digits than its factorization.

140070870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 140070870 is about 11835.1539913936. The cubic root of 140070870 is about 519.3370125613.

The spelling of 140070870 in words is "one hundred forty million, seventy thousand, eight hundred seventy".