16491954 has 8 divisors (see below), whose sum is σ = 32983920. Its totient is φ = 5497316.

The previous prime is 16491953. The next prime is 16491997. The reversal of 16491954 is 45919461.

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

16491954 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (16491953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1374324 + ... + 1374335.

It is an arithmetic number, because the mean of its divisors is an integer number (4122990).

Almost surely, 2^16491954 is an apocalyptic number.

16491954 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16491954 is a wasteful number, since it uses less digits than its factorization.

16491954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748664.

The product of its digits is 38880, while the sum is 39.

The square root of 16491954 is about 4061.0286874141. The cubic root of 16491954 is about 254.5407805805.

The spelling of 16491954 in words is "sixteen million, four hundred ninety-one thousand, nine hundred fifty-four".