1705113640 has 24 divisors (see below), whose sum is σ = 3837093390. Its totient is φ = 681940992.

The previous prime is 1705113569. The next prime is 1705113659. The reversal of 1705113640 is 463115071.

It can be written as a sum of positive squares in 3 ways, for example, as 576288036 + 1128825604 = 24006^2 + 33598^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1705113599 and 1705113608.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 257896 + ... + 264424.

Almost surely, 2^1705113640 is an apocalyptic number.

1705113640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1705113640 is an abundant number, since it is smaller than the sum of its proper divisors (2131979750).

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

1705113640 is an frugal number, since it uses more digits than its factorization.

1705113640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13069 (or 6536 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1705113640 is about 41293.0216864787. The cubic root of 1705113640 is about 1194.6786692272.

The spelling of 1705113640 in words is "one billion, seven hundred five million, one hundred thirteen thousand, six hundred forty".