70218036 has 96 divisors (see below), whose sum is σ = 209422080. Its totient is φ = 19930752.

The previous prime is 70218023. The next prime is 70218059. The reversal of 70218036 is 63081207.

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

70218036 is a Rhonda number in base 16.

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 31 ways as a sum of consecutive naturals, for example, 221350 + ... + 221666.

It is an arithmetic number, because the mean of its divisors is an integer number (2181480).

Almost surely, 2^70218036 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 70218036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104711040).

70218036 is an abundant number, since it is smaller than the sum of its proper divisors (139204044).

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

70218036 is a wasteful number, since it uses less digits than its factorization.

70218036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630 (or 622 counting only the distinct ones).

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

The square root of 70218036 is about 8379.6202777930. The cubic root of 70218036 is about 412.5559857895. Note that the first 3 decimals are identical.

The spelling of 70218036 in words is "seventy million, two hundred eighteen thousand, thirty-six".