16142540 has 12 divisors (see below), whose sum is σ = 33899376. Its totient is φ = 6457008.

The previous prime is 16142521. The next prime is 16142543. The reversal of 16142540 is 4524161.

16142540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

16142540 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.

It is a plaindrome in base 9.

It is a zygodrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (16142543) 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, 403544 + ... + 403583.

It is an arithmetic number, because the mean of its divisors is an integer number (2824948).

Almost surely, 2^16142540 is an apocalyptic number.

16142540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16142540 is an abundant number, since it is smaller than the sum of its proper divisors (17756836).

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

16142540 is a wasteful number, since it uses less digits than its factorization.

16142540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807136 (or 807134 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 16142540 is about 4017.7779928712. Note that the first 3 decimals coincide. The cubic root of 16142540 is about 252.7302869183.

The spelling of 16142540 in words is "sixteen million, one hundred forty-two thousand, five hundred forty".