16409265 has 8 divisors (see below), whose sum is σ = 26254848. Its totient is φ = 8751600.

The previous prime is 16409249. The next prime is 16409287. The reversal of 16409265 is 56290461.

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

It is not a de Polignac number, because 16409265 - 2⁴ = 16409249 is a prime.

It is an unprimeable number.

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, 546961 + ... + 546990.

It is an arithmetic number, because the mean of its divisors is an integer number (3281856).

Almost surely, 2^16409265 is an apocalyptic number.

16409265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16409265 is a deficient number, since it is larger than the sum of its proper divisors (9845583).

16409265 is a wasteful number, since it uses less digits than its factorization.

16409265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093959.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 16409265 is about 4050.8350990876. The cubic root of 16409265 is about 254.1146536345.

The spelling of 16409265 in words is "sixteen million, four hundred nine thousand, two hundred sixty-five".