70368660 has 72 divisors (see below), whose sum is σ = 214305000. Its totient is φ = 18690048.

The previous prime is 70368653. The next prime is 70368689. The reversal of 70368660 is 6686307.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 412164 + 69956496 = 642^2 + 8364^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55716 + ... + 56964.

Almost surely, 2^70368660 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 70368660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107152500).

70368660 is an abundant number, since it is smaller than the sum of its proper divisors (143936340).

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

70368660 is a wasteful number, since it uses less digits than its factorization.

70368660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577 (or 1572 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 70368660 is about 8388.6029826187. The cubic root of 70368660 is about 412.8507650070.

The spelling of 70368660 in words is "seventy million, three hundred sixty-eight thousand, six hundred sixty".