16398146 has 8 divisors (see below), whose sum is σ = 24627900. Its totient is φ = 8188848.

The previous prime is 16398139. The next prime is 16398157. The reversal of 16398146 is 64189361.

It can be written as a sum of positive squares in 2 ways, for example, as 13980121 + 2418025 = 3739^2 + 1555^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 2921 + ... + 6428.

Almost surely, 2^16398146 is an apocalyptic number.

16398146 is a deficient number, since it is larger than the sum of its proper divisors (8229754).

16398146 is an equidigital number, since it uses as much as digits as its factorization.

16398146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10228.

The product of its digits is 31104, while the sum is 38.

The square root of 16398146 is about 4049.4624334595. The cubic root of 16398146 is about 254.0572442124.

The spelling of 16398146 in words is "sixteen million, three hundred ninety-eight thousand, one hundred forty-six".