1600343604 has 18 divisors (see below), whose sum is σ = 4045313090. Its totient is φ = 533447856.

The previous prime is 1600343587. The next prime is 1600343623. The reversal of 1600343604 is 4063430061.

1600343604 is a `hidden beast` number, since 16 + 0 + 0 + 3 + 43 + 604 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1482404004 + 117939600 = 38502^2 + 10860^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1600343604² = 5122199301727417632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 22226959 + ... + 22227030.

Almost surely, 2^1600343604 is an apocalyptic number.

It is an amenable number.

1600343604 is an abundant number, since it is smaller than the sum of its proper divisors (2444969486).

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

1600343604 is a wasteful number, since it uses less digits than its factorization.

1600343604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44453999 (or 44453994 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 1600343604 is about 40004.2948194316. The cubic root of 1600343604 is about 1169.6908146417.

Adding to 1600343604 its reverse (4063430061), we get a palindrome (5663773665).

The spelling of 1600343604 in words is "one billion, six hundred million, three hundred forty-three thousand, six hundred four".