16778048 has 56 divisors (see below), whose sum is σ = 40306752. Its totient is φ = 6764544.

The previous prime is 16778023. The next prime is 16778071. The reversal of 16778048 is 84087761.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 16777996 and 16778014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6515 + ... + 8717.

Almost surely, 2^16778048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16778048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20153376).

16778048 is an abundant number, since it is smaller than the sum of its proper divisors (23528704).

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

16778048 is a wasteful number, since it uses less digits than its factorization.

16778048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2239 (or 2229 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 16778048 is about 4096.1015612409. The cubic root of 16778048 is about 256.0042317009.

The spelling of 16778048 in words is "sixteen million, seven hundred seventy-eight thousand, forty-eight".