16449672 has 32 divisors (see below), whose sum is σ = 41824800. Its totient is φ = 5389824.

The previous prime is 16449661. The next prime is 16449683. The reversal of 16449672 is 27694461.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16449661) and next prime (16449683).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 16449672.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4393 + ... + 7224.

It is an arithmetic number, because the mean of its divisors is an integer number (1307025).

Almost surely, 2^16449672 is an apocalyptic number.

16449672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16449672 is an abundant number, since it is smaller than the sum of its proper divisors (25375128).

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

16449672 is a wasteful number, since it uses less digits than its factorization.

16449672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11685 (or 11681 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 16449672 is about 4055.8195226119. The cubic root of 16449672 is about 254.3230642319.

The spelling of 16449672 in words is "sixteen million, four hundred forty-nine thousand, six hundred seventy-two".