1205570670 has 16 divisors (see below), whose sum is σ = 2893369680. Its totient is φ = 321485504.

The previous prime is 1205570651. The next prime is 1205570693. The reversal of 1205570670 is 760755021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20092815 + ... + 20092874.

It is an arithmetic number, because the mean of its divisors is an integer number (180835605).

Almost surely, 2^1205570670 is an apocalyptic number.

1205570670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1205570670 is an abundant number, since it is smaller than the sum of its proper divisors (1687799010).

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

1205570670 is a wasteful number, since it uses less digits than its factorization.

1205570670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40185699.

The product of its (nonzero) digits is 14700, while the sum is 33.

The square root of 1205570670 is about 34721.3287476156. The cubic root of 1205570670 is about 1064.3003979434.

The spelling of 1205570670 in words is "one billion, two hundred five million, five hundred seventy thousand, six hundred seventy".