4140520 has 32 divisors (see below), whose sum is σ = 9865800. Its totient is φ = 1558528.

The previous prime is 4140511. The next prime is 4140557. The reversal of 4140520 is 250414.

It can be written as a sum of positive squares in 4 ways, for example, as 3319684 + 820836 = 1822^2 + 906^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4140494 and 4140503.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2365 + ... + 3724.

Almost surely, 2^4140520 is an apocalyptic number.

4140520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4140520 is an abundant number, since it is smaller than the sum of its proper divisors (5725280).

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

4140520 is a wasteful number, since it uses less digits than its factorization.

4140520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6117 (or 6113 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 4140520 is about 2034.8267739540. The cubic root of 4140520 is about 160.5775998559.

Adding to 4140520 its reverse (250414), we get a palindrome (4390934).

It can be divided in two parts, 41405 and 20, that multiplied together give a square (828100 = 910²).

The spelling of 4140520 in words is "four million, one hundred forty thousand, five hundred twenty".