4063540 has 24 divisors (see below), whose sum is σ = 9190440. Its totient is φ = 1500288.

The previous prime is 4063537. The next prime is 4063547. The reversal of 4063540 is 453604.

It can be written as a sum of positive squares in 4 ways, for example, as 944784 + 3118756 = 972^2 + 1766^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4063547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7555 + ... + 8074.

It is an arithmetic number, because the mean of its divisors is an integer number (382935).

Almost surely, 2^4063540 is an apocalyptic number.

It is an amenable number.

4063540 is an abundant number, since it is smaller than the sum of its proper divisors (5126900).

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

4063540 is a wasteful number, since it uses less digits than its factorization.

4063540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15651 (or 15649 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 4063540 is about 2015.8224128132. The cubic root of 4063540 is about 159.5762223189.

The spelling of 4063540 in words is "four million, sixty-three thousand, five hundred forty".