15648140 has 24 divisors (see below), whose sum is σ = 33106752. Its totient is φ = 6212480.

The previous prime is 15648131. The next prime is 15648161. The reversal of 15648140 is 4184651.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116 + ... + 5595.

It is an arithmetic number, because the mean of its divisors is an integer number (1379448).

Almost surely, 2^15648140 is an apocalyptic number.

15648140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15648140 is an abundant number, since it is smaller than the sum of its proper divisors (17458612).

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

15648140 is a wasteful number, since it uses less digits than its factorization.

15648140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5857 (or 5855 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 15648140 is about 3955.7729965204. The cubic root of 15648140 is about 250.1233524600.

The spelling of 15648140 in words is "fifteen million, six hundred forty-eight thousand, one hundred forty".