70668288 has 156 divisors (see below), whose sum is σ = 214669728. Its totient is φ = 23224320.

The previous prime is 70668287. The next prime is 70668289. The reversal of 70668288 is 88286607.

It is an interprime number because it is at equal distance from previous prime (70668287) and next prime (70668289).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70668287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 995293 + ... + 995363.

It is an arithmetic number, because the mean of its divisors is an integer number (1376088).

Almost surely, 2^70668288 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 70668288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107334864).

70668288 is an abundant number, since it is smaller than the sum of its proper divisors (144001440).

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

70668288 is an frugal number, since it uses more digits than its factorization.

70668288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 70668288 is about 8406.4432431320. The cubic root of 70668288 is about 413.4359047095.

The spelling of 70668288 in words is "seventy million, six hundred sixty-eight thousand, two hundred eighty-eight".