16313320 has 16 divisors (see below), whose sum is σ = 36705060. Its totient is φ = 6525312.

The previous prime is 16313309. The next prime is 16313333. The reversal of 16313320 is 2331361.

It can be written as a sum of positive squares in 2 ways, for example, as 14607684 + 1705636 = 3822^2 + 1306^2 .

It is a super-2 number, since 2×16313320² = 532248818844800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203877 + ... + 203956.

Almost surely, 2^16313320 is an apocalyptic number.

16313320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16313320 is an abundant number, since it is smaller than the sum of its proper divisors (20391740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16313320 is a wasteful number, since it uses less digits than its factorization.

16313320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407844 (or 407840 counting only the distinct ones).

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

The square root of 16313320 is about 4038.9751175267. The cubic root of 16313320 is about 253.6184156038.

Adding to 16313320 its reverse (2331361), we get a palindrome (18644681).

The spelling of 16313320 in words is "sixteen million, three hundred thirteen thousand, three hundred twenty".