16505414 has 8 divisors (see below), whose sum is σ = 26061240. Its totient is φ = 7818336.

The previous prime is 16505407. The next prime is 16505417. The reversal of 16505414 is 41450561.

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

It is a super-2 number, since 2×16505414² = 544857382622792, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16505417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217139 + ... + 217214.

It is an arithmetic number, because the mean of its divisors is an integer number (3257655).

Almost surely, 2^16505414 is an apocalyptic number.

16505414 is a deficient number, since it is larger than the sum of its proper divisors (9555826).

16505414 is a wasteful number, since it uses less digits than its factorization.

16505414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434374.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 16505414 is about 4062.6855649927. The cubic root of 16505414 is about 254.6100100413.

Adding to 16505414 its reverse (41450561), we get a palindrome (57955975).

The spelling of 16505414 in words is "sixteen million, five hundred five thousand, four hundred fourteen".