1605513260 has 48 divisors (see below), whose sum is σ = 3719513952. Its totient is φ = 578342400.

The previous prime is 1605513233. The next prime is 1605513323. The reversal of 1605513260 is 623155061.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64646 + ... + 85965.

It is an arithmetic number, because the mean of its divisors is an integer number (77489874).

Almost surely, 2^1605513260 is an apocalyptic number.

1605513260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1605513260 is an abundant number, since it is smaller than the sum of its proper divisors (2114000692).

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

1605513260 is a wasteful number, since it uses less digits than its factorization.

1605513260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150674 (or 150672 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 1605513260 is about 40068.8564848063. The cubic root of 1605513260 is about 1170.9489610382.

The spelling of 1605513260 in words is "one billion, six hundred five million, five hundred thirteen thousand, two hundred sixty".