70087140 has 96 divisors (see below), whose sum is σ = 220268160. Its totient is φ = 18499968.

The previous prime is 70087123. The next prime is 70087169. The reversal of 70087140 is 4178007.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57174 + ... + 58386.

It is an arithmetic number, because the mean of its divisors is an integer number (2294460).

Almost surely, 2^70087140 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 70087140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110134080).

70087140 is an abundant number, since it is smaller than the sum of its proper divisors (150181020).

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

70087140 is a wasteful number, since it uses less digits than its factorization.

70087140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338 (or 1330 counting only the distinct ones).

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

The square root of 70087140 is about 8371.8062567166. The cubic root of 70087140 is about 412.2994727821.

The spelling of 70087140 in words is "seventy million, eighty-seven thousand, one hundred forty".