204406046 has 16 divisors (see below), whose sum is σ = 330936144. Its totient is φ = 94129344.

The previous prime is 204406043. The next prime is 204406049. The reversal of 204406046 is 640604402.

It is an interprime number because it is at equal distance from previous prime (204406043) and next prime (204406049).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204406043) 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, 3281 + ... + 20483.

It is an arithmetic number, because the mean of its divisors is an integer number (20683509).

Almost surely, 2^204406046 is an apocalyptic number.

204406046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

204406046 is a deficient number, since it is larger than the sum of its proper divisors (126530098).

204406046 is a wasteful number, since it uses less digits than its factorization.

204406046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17675.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 204406046 is about 14297.0642441027. The cubic root of 204406046 is about 589.0668443291.

The spelling of 204406046 in words is "two hundred four million, four hundred six thousand, forty-six".