16271040 has 112 divisors (see below), whose sum is σ = 54754272. Its totient is φ = 4079616.

The previous prime is 16271033. The next prime is 16271107. The reversal of 16271040 is 4017261.

It is a junction number, because it is equal to n+sod(n) for n = 16270998 and 16271016.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15822 + ... + 16818.

Almost surely, 2^16271040 is an apocalyptic number.

16271040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16271040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27377136).

16271040 is an abundant number, since it is smaller than the sum of its proper divisors (38483232).

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

16271040 is a wasteful number, since it uses less digits than its factorization.

16271040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 16271040 is about 4033.7377207746. The cubic root of 16271040 is about 253.3991211106.

The spelling of 16271040 in words is "sixteen million, two hundred seventy-one thousand, forty".