1260405170 has 16 divisors (see below), whose sum is σ = 2270194560. Its totient is φ = 503836464.

The previous prime is 1260405169. The next prime is 1260405173. The reversal of 1260405170 is 715040621.

It is not an unprimeable number, because it can be changed into a prime (1260405173) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 24122 + ... + 55701.

It is an arithmetic number, because the mean of its divisors is an integer number (141887160).

Almost surely, 2^1260405170 is an apocalyptic number.

1260405170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1260405170 is a deficient number, since it is larger than the sum of its proper divisors (1009789390).

1260405170 is a wasteful number, since it uses less digits than its factorization.

1260405170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81409.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1260405170 is about 35502.1854256889. The cubic root of 1260405170 is about 1080.1980575267.

Adding to 1260405170 its reverse (715040621), we get a palindrome (1975445791).

The spelling of 1260405170 in words is "one billion, two hundred sixty million, four hundred five thousand, one hundred seventy".