16404130 has 16 divisors (see below), whose sum is σ = 29610360. Its totient is φ = 6543232.

The previous prime is 16404127. The next prime is 16404137. The reversal of 16404130 is 3140461.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14145121 + 2259009 = 3761^2 + 1503^2 .

It is a zygodrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 16404098 and 16404107.

It is not an unprimeable number, because it can be changed into a prime (16404137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1782 + ... + 5998.

Almost surely, 2^16404130 is an apocalyptic number.

16404130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16404130 is a deficient number, since it is larger than the sum of its proper divisors (13206230).

16404130 is a wasteful number, since it uses less digits than its factorization.

16404130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4613.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 16404130 is about 4050.2012295687. The cubic root of 16404130 is about 254.0881439182.

Adding to 16404130 its reverse (3140461), we get a palindrome (19544591).

The spelling of 16404130 in words is "sixteen million, four hundred four thousand, one hundred thirty".