4052520 has 48 divisors (see below), whose sum is σ = 13171860. Its totient is φ = 1080576.

The previous prime is 4052513. The next prime is 4052527. The reversal of 4052520 is 252504.

It is an interprime number because it is at equal distance from previous prime (4052513) and next prime (4052527).

It can be written as a sum of positive squares in 2 ways, for example, as 3992004 + 60516 = 1998^2 + 246^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 4052493 and 4052502.

It is not an unprimeable number, because it can be changed into a prime (4052527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5269 + ... + 5988.

Almost surely, 2^4052520 is an apocalyptic number.

4052520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4052520 is an abundant number, since it is smaller than the sum of its proper divisors (9119340).

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

4052520 is a wasteful number, since it uses less digits than its factorization.

4052520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11274 (or 11267 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 4052520 is about 2013.0871814206. The cubic root of 4052520 is about 159.4318390116.

The spelling of 4052520 in words is "four million, fifty-two thousand, five hundred twenty".