16452449 has 4 divisors (see below), whose sum is σ = 17718036. Its totient is φ = 15186864.

The previous prime is 16452433. The next prime is 16452463. The reversal of 16452449 is 94425461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6466849 + 9985600 = 2543^2 + 3160^2 .

It is a cyclic number.

It is not a de Polignac number, because 16452449 - 2⁴ = 16452433 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16452409) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 632774 + ... + 632799.

It is an arithmetic number, because the mean of its divisors is an integer number (4429509).

Almost surely, 2^16452449 is an apocalyptic number.

It is an amenable number.

16452449 is a deficient number, since it is larger than the sum of its proper divisors (1265587).

16452449 is a wasteful number, since it uses less digits than its factorization.

16452449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265586.

The product of its digits is 34560, while the sum is 35.

The square root of 16452449 is about 4056.1618557449. The cubic root of 16452449 is about 254.3373748599.

The spelling of 16452449 in words is "sixteen million, four hundred fifty-two thousand, four hundred forty-nine".