1604425569 has 16 divisors (see below), whose sum is σ = 2254056000. Its totient is φ = 1012317696.

The previous prime is 1604425567. The next prime is 1604425579. The reversal of 1604425569 is 9655244061.

It is not a de Polignac number, because 1604425569 - 2¹ = 1604425567 is a prime.

It is a super-2 number, since 2×1604425569² = 5148362812921947522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1604425569.

It is not an unprimeable number, because it can be changed into a prime (1604425567) 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, 46377 + ... + 73209.

It is an arithmetic number, because the mean of its divisors is an integer number (140878500).

Almost surely, 2^1604425569 is an apocalyptic number.

1604425569 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1604425569 is a deficient number, since it is larger than the sum of its proper divisors (649630431).

1604425569 is a wasteful number, since it uses less digits than its factorization.

1604425569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27904.

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 1604425569 is about 40055.2814120685. The cubic root of 1604425569 is about 1170.6844727479.

The spelling of 1604425569 in words is "one billion, six hundred four million, four hundred twenty-five thousand, five hundred sixty-nine".