16349505 has 8 divisors (see below), whose sum is σ = 26159232. Its totient is φ = 8719728.

The previous prime is 16349497. The next prime is 16349507. The reversal of 16349505 is 50594361.

It is a happy number.

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

It is not a de Polignac number, because 16349505 - 2³ = 16349497 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16349507) 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, 544969 + ... + 544998.

It is an arithmetic number, because the mean of its divisors is an integer number (3269904).

Almost surely, 2^16349505 is an apocalyptic number.

16349505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16349505 is a deficient number, since it is larger than the sum of its proper divisors (9809727).

16349505 is a wasteful number, since it uses less digits than its factorization.

16349505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089975.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 16349505 is about 4043.4521142212. The cubic root of 16349505 is about 253.8057963319.

The spelling of 16349505 in words is "sixteen million, three hundred forty-nine thousand, five hundred five".