1605248480 has 96 divisors (see below), whose sum is σ = 4233575808. Its totient is φ = 570124800.

The previous prime is 1605248431. The next prime is 1605248483. The reversal of 1605248480 is 848425061.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1605248483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65075 + ... + 86285.

It is an arithmetic number, because the mean of its divisors is an integer number (44099748).

Almost surely, 2^1605248480 is an apocalyptic number.

1605248480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1605248480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2116787904).

1605248480 is an abundant number, since it is smaller than the sum of its proper divisors (2628327328).

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

1605248480 is a wasteful number, since it uses less digits than its factorization.

1605248480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21280 (or 21272 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 1605248480 is about 40065.5522862221. The cubic root of 1605248480 is about 1170.8845868348.

The spelling of 1605248480 in words is "one billion, six hundred five million, two hundred forty-eight thousand, four hundred eighty".