70146216 has 128 divisors (see below), whose sum is σ = 235872000. Its totient is φ = 18855936.

The previous prime is 70146173. The next prime is 70146227. The reversal of 70146216 is 61264107.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 70146216.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24340 + ... + 27068.

It is an arithmetic number, because the mean of its divisors is an integer number (1842750).

Almost surely, 2^70146216 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 70146216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117936000).

70146216 is an abundant number, since it is smaller than the sum of its proper divisors (165725784).

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

70146216 is a wasteful number, since it uses less digits than its factorization.

70146216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2768 (or 2758 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 70146216 is about 8375.3337843933. Note that the first 3 decimals coincide. The cubic root of 70146216 is about 412.4152817755.

The spelling of 70146216 in words is "seventy million, one hundred forty-six thousand, two hundred sixteen".