16451330 has 32 divisors (see below), whose sum is σ = 34041600. Its totient is φ = 5607360.

The previous prime is 16451317. The next prime is 16451377. The reversal of 16451330 is 3315461.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16451296 and 16451305.

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 15 ways as a sum of consecutive naturals, for example, 13340 + ... + 14520.

It is an arithmetic number, because the mean of its divisors is an integer number (1063800).

Almost surely, 2^16451330 is an apocalyptic number.

16451330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16451330 is an abundant number, since it is smaller than the sum of its proper divisors (17590270).

16451330 is a wasteful number, since it uses less digits than its factorization.

16451330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 16451330 is about 4056.0239151169. The cubic root of 16451330 is about 254.3316085457.

Adding to 16451330 its reverse (3315461), we get a palindrome (19766791).

The spelling of 16451330 in words is "sixteen million, four hundred fifty-one thousand, three hundred thirty".