70220345 has 12 divisors (see below), whose sum is σ = 91245996. Its totient is φ = 51854400.

The previous prime is 70220329. The next prime is 70220401. The reversal of 70220345 is 54302207.

It can be written as a sum of positive squares in 6 ways, for example, as 12033961 + 58186384 = 3469^2 + 7628^2 .

It is not a de Polignac number, because 70220345 - 2⁴ = 70220329 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70220345.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40706 + ... + 42395.

It is an arithmetic number, because the mean of its divisors is an integer number (7603833).

Almost surely, 2^70220345 is an apocalyptic number.

It is an amenable number.

70220345 is a deficient number, since it is larger than the sum of its proper divisors (21025651).

70220345 is a wasteful number, since it uses less digits than its factorization.

70220345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83132 (or 83119 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 70220345 is about 8379.7580513998. The cubic root of 70220345 is about 412.5605078059.

The spelling of 70220345 in words is "seventy million, two hundred twenty thousand, three hundred forty-five".