201600004 has 6 divisors (see below), whose sum is σ = 352800014. Its totient is φ = 100800000.

The previous prime is 201600001. The next prime is 201600011. The reversal of 201600004 is 400006102.

It can be written as a sum of positive squares in only one way, i.e., 162562500 + 39037504 = 12750^2 + 6248^2 .

It is a super-2 number, since 2×201600004² = 81285123225600032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201600001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25199997 + ... + 25200004.

Almost surely, 2^201600004 is an apocalyptic number.

It is an amenable number.

201600004 is a deficient number, since it is larger than the sum of its proper divisors (151200010).

201600004 is a wasteful number, since it uses less digits than its factorization.

201600004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50400005 (or 50400003 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 201600004 is about 14198.5916202981. The cubic root of 201600004 is about 586.3588874293.

Adding to 201600004 its reverse (400006102), we get a palindrome (601606106).

The spelling of 201600004 in words is "two hundred one million, six hundred thousand, four".