16320890 has 16 divisors (see below), whose sum is σ = 29425032. Its totient is φ = 6517824.

The previous prime is 16320809. The next prime is 16320919. The reversal of 16320890 is 9802361.

It can be written as a sum of positive squares in 4 ways, for example, as 11607649 + 4713241 = 3407^2 + 2171^2 .

It is a plaindrome in base 14.

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, 9152 + ... + 10788.

Almost surely, 2^16320890 is an apocalyptic number.

16320890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16320890 is a deficient number, since it is larger than the sum of its proper divisors (13104142).

16320890 is a wasteful number, since it uses less digits than its factorization.

16320890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 16320890 is about 4039.9121277572. The cubic root of 16320890 is about 253.6576390629.

The spelling of 16320890 in words is "sixteen million, three hundred twenty thousand, eight hundred ninety".