16032540 has 48 divisors (see below), whose sum is σ = 45158400. Its totient is φ = 4249920.

The previous prime is 16032539. The next prime is 16032557. The reversal of 16032540 is 4523061.

It is a happy number.

16032540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 10761 + ... + 12159.

It is an arithmetic number, because the mean of its divisors is an integer number (940800).

Almost surely, 2^16032540 is an apocalyptic number.

16032540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16032540 is an abundant number, since it is smaller than the sum of its proper divisors (29125860).

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

16032540 is a wasteful number, since it uses less digits than its factorization.

16032540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602 (or 1600 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 16032540 is about 4004.0654340308. The cubic root of 16032540 is about 252.1549186007.

The spelling of 16032540 in words is "sixteen million, thirty-two thousand, five hundred forty".