70218834 has 32 divisors (see below), whose sum is σ = 162539520. Its totient is φ = 19807632.

The previous prime is 70218833. The next prime is 70218847. The reversal of 70218834 is 43881207.

It is a junction number, because it is equal to n+sod(n) for n = 70218795 and 70218804.

It is not an unprimeable number, because it can be changed into a prime (70218833) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7264 + ... + 13899.

It is an arithmetic number, because the mean of its divisors is an integer number (5079360).

Almost surely, 2^70218834 is an apocalyptic number.

70218834 is an abundant number, since it is smaller than the sum of its proper divisors (92320686).

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

70218834 is a wasteful number, since it uses less digits than its factorization.

70218834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21254.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 70218834 is about 8379.6678931805. The cubic root of 70218834 is about 412.5575486284.

The spelling of 70218834 in words is "seventy million, two hundred eighteen thousand, eight hundred thirty-four".