70144144 has 40 divisors (see below), whose sum is σ = 157880768. Its totient is φ = 29566080.

The previous prime is 70144141. The next prime is 70144157. The reversal of 70144144 is 44144107.

It is not an unprimeable number, because it can be changed into a prime (70144141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1699 + ... + 11965.

Almost surely, 2^70144144 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 70144144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78940384).

70144144 is an abundant number, since it is smaller than the sum of its proper divisors (87736624).

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

70144144 is a wasteful number, since it uses less digits than its factorization.

70144144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10343 (or 10337 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 70144144 is about 8375.2100869172. The cubic root of 70144144 is about 412.4112210534.

The spelling of 70144144 in words is "seventy million, one hundred forty-four thousand, one hundred forty-four".