70398288 has 80 divisors (see below), whose sum is σ = 204451200. Its totient is φ = 23189760.

The previous prime is 70398281. The next prime is 70398299. The reversal of 70398288 is 88289307.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70398281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37533 + ... + 39363.

It is an arithmetic number, because the mean of its divisors is an integer number (2555640).

Almost surely, 2^70398288 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 70398288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102225600).

70398288 is an abundant number, since it is smaller than the sum of its proper divisors (134052912).

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

70398288 is a wasteful number, since it uses less digits than its factorization.

70398288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937 (or 1925 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 70398288 is about 8390.3687642439. The cubic root of 70398288 is about 412.9086990653.

The spelling of 70398288 in words is "seventy million, three hundred ninety-eight thousand, two hundred eighty-eight".