70012644 has 144 divisors (see below), whose sum is σ = 196761600. Its totient is φ = 19274112.

The previous prime is 70012639. The next prime is 70012673. The reversal of 70012644 is 44621007.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 886197 + ... + 886275.

It is an arithmetic number, because the mean of its divisors is an integer number (1366400).

Almost surely, 2^70012644 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 70012644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98380800).

70012644 is an abundant number, since it is smaller than the sum of its proper divisors (126748956).

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

70012644 is a wasteful number, since it uses less digits than its factorization.

70012644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 70012644 is about 8367.3558547489. The cubic root of 70012644 is about 412.1533425495.

The spelling of 70012644 in words is "seventy million, twelve thousand, six hundred forty-four".