70680320 has 36 divisors (see below), whose sum is σ = 169304520. Its totient is φ = 28271616.

The previous prime is 70680307. The next prime is 70680343. The reversal of 70680320 is 2308607.

It is a self number, because there is not a number n which added to its sum of digits gives 70680320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26330 + ... + 28889.

Almost surely, 2^70680320 is an apocalyptic number.

It is an amenable number.

70680320 is an abundant number, since it is smaller than the sum of its proper divisors (98624200).

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

70680320 is an equidigital number, since it uses as much as digits as its factorization.

70680320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55240 (or 55226 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 70680320 is about 8407.1588542147. The cubic root of 70680320 is about 413.4593672774.

Adding to 70680320 its reverse (2308607), we get a palindrome (72988927).

The spelling of 70680320 in words is "seventy million, six hundred eighty thousand, three hundred twenty".