16638048 has 180 divisors, whose sum is σ = 57355452. Its totient is φ = 4717440.

The previous prime is 16638023. The next prime is 16638077. The reversal of 16638048 is 84083661.

It is a happy number.

16638048 is a `hidden beast` number, since 16 + 638 + 0 + 4 + 8 = 666.

16638048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 126943 + ... + 127073.

Almost surely, 2^16638048 is an apocalyptic number.

16638048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16638048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28677726).

16638048 is an abundant number, since it is smaller than the sum of its proper divisors (40717404).

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

16638048 is a wasteful number, since it uses less digits than its factorization.

16638048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 16638048 is about 4078.9763421721. The cubic root of 16638048 is about 255.2901886727.

The spelling of 16638048 in words is "sixteen million, six hundred thirty-eight thousand, forty-eight".