4051648 has 56 divisors (see below), whose sum is σ = 8686800. Its totient is φ = 1870848.

The previous prime is 4051633. The next prime is 4051667. The reversal of 4051648 is 8461504.

4051648 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68643 + ... + 68701.

Almost surely, 2^4051648 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 4051648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4343400).

4051648 is an abundant number, since it is smaller than the sum of its proper divisors (4635152).

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

4051648 is a wasteful number, since it uses less digits than its factorization.

4051648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 4051648 is about 2012.8705869976. The cubic root of 4051648 is about 159.4204029556.

The spelling of 4051648 in words is "four million, fifty-one thousand, six hundred forty-eight".