16421048 has 64 divisors (see below), whose sum is σ = 38154240. Its totient is φ = 6465024.

The previous prime is 16421039. The next prime is 16421063. The reversal of 16421048 is 84012461.

16421048 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 an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44561 + ... + 44927.

It is an arithmetic number, because the mean of its divisors is an integer number (596160).

Almost surely, 2^16421048 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 16421048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19077120).

16421048 is an abundant number, since it is smaller than the sum of its proper divisors (21733192).

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

16421048 is a wasteful number, since it uses less digits than its factorization.

16421048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 16421048 is about 4052.2892295590. The cubic root of 16421048 is about 254.1754631134.

It can be divided in two parts, 164 and 21048, that added together give a palindrome (21212).

The spelling of 16421048 in words is "sixteen million, four hundred twenty-one thousand, forty-eight".