70283520 has 108 divisors (see below), whose sum is σ = 243213516. Its totient is φ = 18739200.

The previous prime is 70283519. The next prime is 70283531. The reversal of 70283520 is 2538207.

It can be written as a sum of positive squares in 2 ways, for example, as 34857216 + 35426304 = 5904^2 + 5952^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8470 + ... + 14570.

It is an arithmetic number, because the mean of its divisors is an integer number (2251977).

Almost surely, 2^70283520 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 70283520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121606758).

70283520 is an abundant number, since it is smaller than the sum of its proper divisors (172929996).

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

70283520 is a wasteful number, since it uses less digits than its factorization.

70283520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6128 (or 6111 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 70283520 is about 8383.5267041979. The cubic root of 70283520 is about 412.6841932222.

The spelling of 70283520 in words is "seventy million, two hundred eighty-three thousand, five hundred twenty".