16328949 has 48 divisors (see below), whose sum is σ = 27827712. Its totient is φ = 8334144.

The previous prime is 16328933. The next prime is 16328953. The reversal of 16328949 is 94982361.

It is not a de Polignac number, because 16328949 - 2⁴ = 16328933 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 16328949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16328969) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 152554 + ... + 152660.

It is an arithmetic number, because the mean of its divisors is an integer number (579744).

Almost surely, 2^16328949 is an apocalyptic number.

It is an amenable number.

16328949 is a deficient number, since it is larger than the sum of its proper divisors (11498763).

16328949 is a wasteful number, since it uses less digits than its factorization.

16328949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 173 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 16328949 is about 4040.9094273443. The cubic root of 16328949 is about 253.6993829166.

The spelling of 16328949 in words is "sixteen million, three hundred twenty-eight thousand, nine hundred forty-nine".