1601260904 has 32 divisors (see below), whose sum is σ = 3080133000. Its totient is φ = 779950080.

The previous prime is 1601260883. The next prime is 1601260909. The reversal of 1601260904 is 4090621061.

It can be written as a sum of positive squares in 4 ways, for example, as 1452372100 + 148888804 = 38110^2 + 12202^2 .

It is not an unprimeable number, because it can be changed into a prime (1601260909) 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 7 ways as a sum of consecutive naturals, for example, 245072 + ... + 251520.

Almost surely, 2^1601260904 is an apocalyptic number.

It is an amenable number.

1601260904 is a deficient number, since it is larger than the sum of its proper divisors (1478872096).

1601260904 is a wasteful number, since it uses less digits than its factorization.

1601260904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7253 (or 7249 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1601260904 is about 40015.7581959907. The cubic root of 1601260904 is about 1169.9142567501.

Adding to 1601260904 its reverse (4090621061), we get a palindrome (5691881965).

The spelling of 1601260904 in words is "one billion, six hundred one million, two hundred sixty thousand, nine hundred four".