70000305 has 32 divisors (see below), whose sum is σ = 119242368. Its totient is φ = 34944000.

The previous prime is 70000303. The next prime is 70000319. The reversal of 70000305 is 50300007.

It is not a de Polignac number, because 70000305 - 2¹ = 70000303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (70000303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53155 + ... + 54455.

It is an arithmetic number, because the mean of its divisors is an integer number (3726324).

Almost surely, 2^70000305 is an apocalyptic number.

It is an amenable number.

70000305 is a deficient number, since it is larger than the sum of its proper divisors (49242063).

70000305 is a wasteful number, since it uses less digits than its factorization.

70000305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537.

The product of its (nonzero) digits is 105, while the sum is 15.

The square root of 70000305 is about 8366.6184925572. The cubic root of 70000305 is about 412.1291285476.

The spelling of 70000305 in words is "seventy million, three hundred five", and thus it is an aban number.