16140448 has 12 divisors (see below), whose sum is σ = 31776570. Its totient is φ = 8070208.

The previous prime is 16140419. The next prime is 16140451. The reversal of 16140448 is 84404161.

It can be written as a sum of positive squares in only one way, i.e., 8456464 + 7683984 = 2908^2 + 2772^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252163 + ... + 252226.

Almost surely, 2^16140448 is an apocalyptic number.

It is an amenable number.

16140448 is a deficient number, since it is larger than the sum of its proper divisors (15636122).

16140448 is an equidigital number, since it uses as much as digits as its factorization.

16140448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504399 (or 504391 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 16140448 is about 4017.5176415294. The cubic root of 16140448 is about 252.7193688801.

The spelling of 16140448 in words is "sixteen million, one hundred forty thousand, four hundred forty-eight".