16004949 has 8 divisors (see below), whose sum is σ = 21359520. Its totient is φ = 10660176.

The previous prime is 16004929. The next prime is 16004951. The reversal of 16004949 is 94940061.

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

It is not a de Polignac number, because 16004949 - 2⁹ = 16004437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16004909) 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, 3282 + ... + 6540.

It is an arithmetic number, because the mean of its divisors is an integer number (2669940).

Almost surely, 2^16004949 is an apocalyptic number.

It is an amenable number.

16004949 is a deficient number, since it is larger than the sum of its proper divisors (5354571).

16004949 is a wasteful number, since it uses less digits than its factorization.

16004949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4899.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 16004949 is about 4000.6185771703. The cubic root of 16004949 is about 252.0101879227.

The spelling of 16004949 in words is "sixteen million, four thousand, nine hundred forty-nine".