4519540 has 12 divisors (see below), whose sum is σ = 9491076. Its totient is φ = 1807808.

The previous prime is 4519519. The next prime is 4519547. The reversal of 4519540 is 459154.

It can be written as a sum of positive squares in 2 ways, for example, as 2598544 + 1920996 = 1612^2 + 1386^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4519499 and 4519508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4519547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112969 + ... + 113008.

It is an arithmetic number, because the mean of its divisors is an integer number (790923).

Almost surely, 2^4519540 is an apocalyptic number.

It is an amenable number.

4519540 is an abundant number, since it is smaller than the sum of its proper divisors (4971536).

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

4519540 is a wasteful number, since it uses less digits than its factorization.

4519540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225986 (or 225984 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 4519540 is about 2125.9209768945. The cubic root of 4519540 is about 165.3349790997.

The spelling of 4519540 in words is "four million, five hundred nineteen thousand, five hundred forty".