16413345 has 24 divisors (see below), whose sum is σ = 30639336. Its totient is φ = 8080128.

The previous prime is 16413317. The next prime is 16413349. The reversal of 16413345 is 54331461.

It can be written as a sum of positive squares in 4 ways, for example, as 349281 + 16064064 = 591^2 + 4008^2 .

It is not a de Polignac number, because 16413345 - 2¹² = 16409249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16413349) 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 23 ways as a sum of consecutive naturals, for example, 13444 + ... + 14613.

It is an arithmetic number, because the mean of its divisors is an integer number (1276639).

Almost surely, 2^16413345 is an apocalyptic number.

16413345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16413345 is a deficient number, since it is larger than the sum of its proper divisors (14225991).

16413345 is a wasteful number, since it uses less digits than its factorization.

16413345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28081 (or 28078 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 16413345 is about 4051.3386676505. The cubic root of 16413345 is about 254.1357129135.

The spelling of 16413345 in words is "sixteen million, four hundred thirteen thousand, three hundred forty-five".