16436949 has 8 divisors (see below), whose sum is σ = 22002240. Its totient is φ = 10914816.

The previous prime is 16436947. The next prime is 16436969. The reversal of 16436949 is 94963461.

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

It is not a de Polignac number, because 16436949 - 2¹ = 16436947 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16436949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16436947) 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, 9889 + ... + 11430.

It is an arithmetic number, because the mean of its divisors is an integer number (2750280).

Almost surely, 2^16436949 is an apocalyptic number.

It is an amenable number.

16436949 is a deficient number, since it is larger than the sum of its proper divisors (5565291).

16436949 is a wasteful number, since it uses less digits than its factorization.

16436949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21579.

The product of its digits is 139968, while the sum is 42.

The square root of 16436949 is about 4054.2507322562. The cubic root of 16436949 is about 254.2574785891.

The spelling of 16436949 in words is "sixteen million, four hundred thirty-six thousand, nine hundred forty-nine".