70381344 has 144 divisors (see below), whose sum is σ = 208335456. Its totient is φ = 20782080.

The previous prime is 70381303. The next prime is 70381349. The reversal of 70381344 is 44318307.

It is not an unprimeable number, because it can be changed into a prime (70381349) 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, 847927 + ... + 848009.

It is an arithmetic number, because the mean of its divisors is an integer number (1446774).

Almost surely, 2^70381344 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 70381344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104167728).

70381344 is an abundant number, since it is smaller than the sum of its proper divisors (137954112).

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

70381344 is a wasteful number, since it uses less digits than its factorization.

70381344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 70381344 is about 8389.3589743198. The cubic root of 70381344 is about 412.8755690628.

The spelling of 70381344 in words is "seventy million, three hundred eighty-one thousand, three hundred forty-four".