70185040 has 20 divisors (see below), whose sum is σ = 163180404. Its totient is φ = 28073984.

The previous prime is 70185019. The next prime is 70185067. The reversal of 70185040 is 4058107.

It can be written as a sum of positive squares in 2 ways, for example, as 47831056 + 22353984 = 6916^2 + 4728^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 70184996 and 70185014.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 438577 + ... + 438736.

Almost surely, 2^70185040 is an apocalyptic number.

It is an amenable number.

70185040 is an abundant number, since it is smaller than the sum of its proper divisors (92995364).

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

70185040 is a wasteful number, since it uses less digits than its factorization.

70185040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877326 (or 877320 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 70185040 is about 8377.6512221505. The cubic root of 70185040 is about 412.4913545785.

The spelling of 70185040 in words is "seventy million, one hundred eighty-five thousand, forty".