16343890 has 16 divisors (see below), whose sum is σ = 29481408. Its totient is φ = 6523696.

The previous prime is 16343881. The next prime is 16343891. The reversal of 16343890 is 9834361.

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

It is not an unprimeable number, because it can be changed into a prime (16343891) 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, 4179 + ... + 7081.

It is an arithmetic number, because the mean of its divisors is an integer number (1842588).

Almost surely, 2^16343890 is an apocalyptic number.

16343890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16343890 is a deficient number, since it is larger than the sum of its proper divisors (13137518).

16343890 is a wasteful number, since it uses less digits than its factorization.

16343890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3473.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 16343890 is about 4042.7577221496. The cubic root of 16343890 is about 253.7767377004.

The spelling of 16343890 in words is "sixteen million, three hundred forty-three thousand, eight hundred ninety".