70448688 has 60 divisors (see below), whose sum is σ = 198653208. Its totient is φ = 23304960.

The previous prime is 70448683. The next prime is 70448689. The reversal of 70448688 is 88684407.

It is not an unprimeable number, because it can be changed into a prime (70448681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17943 + ... + 21513.

Almost surely, 2^70448688 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 70448688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99326604).

70448688 is an abundant number, since it is smaller than the sum of its proper divisors (128204520).

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

70448688 is a wasteful number, since it uses less digits than its factorization.

70448688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3722 (or 3713 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The square root of 70448688 is about 8393.3716705505. The cubic root of 70448688 is about 413.0072129862.

The spelling of 70448688 in words is "seventy million, four hundred forty-eight thousand, six hundred eighty-eight".