1605088260 has 72 divisors (see below), whose sum is σ = 4872283416. Its totient is φ = 427714560.

The previous prime is 1605088241. The next prime is 1605088283. The reversal of 1605088260 is 628805061.

It is a happy number.

1605088260 is a `hidden beast` number, since 16 + 0 + 508 + 82 + 60 = 666.

1605088260 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 655462404 + 949625856 = 25602^2 + 30816^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 360850 + ... + 365270.

It is an arithmetic number, because the mean of its divisors is an integer number (67670603).

Almost surely, 2^1605088260 is an apocalyptic number.

1605088260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1605088260 is an abundant number, since it is smaller than the sum of its proper divisors (3267195156).

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

1605088260 is a wasteful number, since it uses less digits than its factorization.

1605088260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6453 (or 6448 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 1605088260 is about 40063.5527630788. The cubic root of 1605088260 is about 1170.8456301722.

The spelling of 1605088260 in words is "one billion, six hundred five million, eighty-eight thousand, two hundred sixty".