16312330 has 16 divisors (see below), whose sum is σ = 29492424. Its totient is φ = 6496000.

The previous prime is 16312327. The next prime is 16312349. The reversal of 16312330 is 3321361.

It can be written as a sum of positive squares in 4 ways, for example, as 10156969 + 6155361 = 3187^2 + 2481^2 .

It is a super-2 number, since 2×16312330² = 532184220057800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16312298 and 16312307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1171 + ... + 5830.

Almost surely, 2^16312330 is an apocalyptic number.

16312330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16312330 is a deficient number, since it is larger than the sum of its proper divisors (13180094).

16312330 is a wasteful number, since it uses less digits than its factorization.

16312330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7241.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 16312330 is about 4038.8525598244. The cubic root of 16312330 is about 253.6132850866.

Adding to 16312330 its reverse (3321361), we get a palindrome (19633691).

The spelling of 16312330 in words is "sixteen million, three hundred twelve thousand, three hundred thirty".