16128140 has 24 divisors (see below), whose sum is σ = 38707872. Its totient is φ = 5529600.

The previous prime is 16128127. The next prime is 16128157. The reversal of 16128140 is 4182161.

It is an unprimeable number.

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, 57461 + ... + 57740.

It is an arithmetic number, because the mean of its divisors is an integer number (1612828).

Almost surely, 2^16128140 is an apocalyptic number.

16128140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16128140 is an abundant number, since it is smaller than the sum of its proper divisors (22579732).

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

16128140 is a wasteful number, since it uses less digits than its factorization.

16128140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115217 (or 115215 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 16128140 is about 4015.9855577430. The cubic root of 16128140 is about 252.6551149643.

The spelling of 16128140 in words is "sixteen million, one hundred twenty-eight thousand, one hundred forty".