16550434 has 8 divisors (see below), whose sum is σ = 24929388. Its totient is φ = 8240640.

The previous prime is 16550423. The next prime is 16550437. The reversal of 16550434 is 43405561.

It can be written as a sum of positive squares in 2 ways, for example, as 16378209 + 172225 = 4047^2 + 415^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (16550437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16687 + ... + 17650.

Almost surely, 2^16550434 is an apocalyptic number.

16550434 is a deficient number, since it is larger than the sum of its proper divisors (8378954).

16550434 is a wasteful number, since it uses less digits than its factorization.

16550434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34580.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 16550434 is about 4068.2224619605. Note that the first 3 decimals coincide. The cubic root of 16550434 is about 254.8412904505.

Adding to 16550434 its reverse (43405561), we get a palindrome (59955995).

The spelling of 16550434 in words is "sixteen million, five hundred fifty thousand, four hundred thirty-four".