16140540 has 48 divisors (see below), whose sum is σ = 48672288. Its totient is φ = 3972864.

The previous prime is 16140529. The next prime is 16140563. The reversal of 16140540 is 4504161.

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, 9567 + ... + 11126.

It is an arithmetic number, because the mean of its divisors is an integer number (1014006).

Almost surely, 2^16140540 is an apocalyptic number.

16140540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16140540 is an abundant number, since it is smaller than the sum of its proper divisors (32531748).

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

16140540 is a wasteful number, since it uses less digits than its factorization.

16140540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20718 (or 20716 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 16140540 is about 4017.5290913695. The cubic root of 16140540 is about 252.7198490431.

The spelling of 16140540 in words is "sixteen million, one hundred forty thousand, five hundred forty".