1604103540 has 96 divisors (see below), whose sum is σ = 4868169600. Its totient is φ = 392311296.

The previous prime is 1604103521. The next prime is 1604103607. The reversal of 1604103540 is 453014061.

It is a self number, because there is not a number n which added to its sum of digits gives 1604103540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115911 + ... + 129009.

It is an arithmetic number, because the mean of its divisors is an integer number (50710100).

Almost surely, 2^1604103540 is an apocalyptic number.

1604103540 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 1604103540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2434084800).

1604103540 is an abundant number, since it is smaller than the sum of its proper divisors (3264066060).

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

1604103540 is a wasteful number, since it uses less digits than its factorization.

1604103540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13281 (or 13279 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1604103540 is about 40051.2614033566. The cubic root of 1604103540 is about 1170.6061436598.

The spelling of 1604103540 in words is "one billion, six hundred four million, one hundred three thousand, five hundred forty".