16271904 has 96 divisors (see below), whose sum is σ = 49109760. Its totient is φ = 4665600.

The previous prime is 16271881. The next prime is 16271909. The reversal of 16271904 is 40917261.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (16271909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19659 + ... + 20469.

It is an arithmetic number, because the mean of its divisors is an integer number (511560).

Almost surely, 2^16271904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16271904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24554880).

16271904 is an abundant number, since it is smaller than the sum of its proper divisors (32837856).

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

16271904 is a wasteful number, since it uses less digits than its factorization.

16271904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854 (or 846 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 16271904 is about 4033.8448160533. The cubic root of 16271904 is about 253.4036062360.

The spelling of 16271904 in words is "sixteen million, two hundred seventy-one thousand, nine hundred four".