4063520 has 48 divisors (see below), whose sum is σ = 9729720. Its totient is φ = 1603584.

The previous prime is 4063517. The next prime is 4063537. The reversal of 4063520 is 253604.

It can be written as a sum of positive squares in 4 ways, for example, as 3055504 + 1008016 = 1748^2 + 1004^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4063492 and 4063501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17324 + ... + 17556.

Almost surely, 2^4063520 is an apocalyptic number.

4063520 is a gapful number since it is divisible by the number (40) 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 4063520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4864860).

4063520 is an abundant number, since it is smaller than the sum of its proper divisors (5666200).

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

4063520 is a wasteful number, since it uses less digits than its factorization.

4063520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 4063520 is about 2015.8174520526. The cubic root of 4063520 is about 159.5759605169.

The spelling of 4063520 in words is "four million, sixty-three thousand, five hundred twenty".