70140688 has 20 divisors (see below), whose sum is σ = 136336140. Its totient is φ = 34957184.

The previous prime is 70140643. The next prime is 70140713. The reversal of 70140688 is 88604107.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6906384 + 63234304 = 2628^2 + 7952^2 .

It is a super-2 number, since 2×70140688² = 9839432226226688, which contains 22 as substring.

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, 1843 + ... + 11986.

It is an arithmetic number, because the mean of its divisors is an integer number (6816807).

Almost surely, 2^70140688 is an apocalyptic number.

It is an amenable number.

70140688 is a deficient number, since it is larger than the sum of its proper divisors (66195452).

70140688 is a wasteful number, since it uses less digits than its factorization.

70140688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14154 (or 14148 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 70140688 is about 8375.0037611932. The cubic root of 70140688 is about 412.4044477791.

The spelling of 70140688 in words is "seventy million, one hundred forty thousand, six hundred eighty-eight".