16401648 has 20 divisors (see below), whose sum is σ = 42371048. Its totient is φ = 5467200.

The previous prime is 16401641. The next prime is 16401701. The reversal of 16401648 is 84610461.

16401648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16401641) 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, 170803 + ... + 170898.

Almost surely, 2^16401648 is an apocalyptic number.

It is an amenable number.

16401648 is an abundant number, since it is smaller than the sum of its proper divisors (25969400).

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

16401648 is a wasteful number, since it uses less digits than its factorization.

16401648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341712 (or 341706 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 16401648 is about 4049.8948134489. The cubic root of 16401648 is about 254.0753284751.

The spelling of 16401648 in words is "sixteen million, four hundred one thousand, six hundred forty-eight".