16395040 has 48 divisors (see below), whose sum is σ = 39650688. Its totient is φ = 6402816.

The previous prime is 16395019. The next prime is 16395047. The reversal of 16395040 is 4059361.

It is not an unprimeable number, because it can be changed into a prime (16395047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5689 + ... + 8071.

It is an arithmetic number, because the mean of its divisors is an integer number (826056).

Almost surely, 2^16395040 is an apocalyptic number.

16395040 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 16395040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19825344).

16395040 is an abundant number, since it is smaller than the sum of its proper divisors (23255648).

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

16395040 is a wasteful number, since it uses less digits than its factorization.

16395040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441 (or 2433 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 16395040 is about 4049.0789076036. The cubic root of 16395040 is about 254.0412027317.

The spelling of 16395040 in words is "sixteen million, three hundred ninety-five thousand, forty".