16452989 has 8 divisors (see below), whose sum is σ = 19084608. Its totient is φ = 13891680.

The previous prime is 16452983. The next prime is 16453037. The reversal of 16452989 is 98925461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16452989 - 2⁴ = 16452973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16452983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17072 + ... + 18009.

It is an arithmetic number, because the mean of its divisors is an integer number (2385576).

Almost surely, 2^16452989 is an apocalyptic number.

It is an amenable number.

16452989 is a deficient number, since it is larger than the sum of its proper divisors (2631619).

16452989 is an equidigital number, since it uses as much as digits as its factorization.

16452989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35155.

The product of its digits is 155520, while the sum is 44.

The square root of 16452989 is about 4056.2284205897. The cubic root of 16452989 is about 254.3401574382.

The spelling of 16452989 in words is "sixteen million, four hundred fifty-two thousand, nine hundred eighty-nine".