4126520 has 32 divisors (see below), whose sum is σ = 9421920. Its totient is φ = 1626240.

The previous prime is 4126513. The next prime is 4126523. The reversal of 4126520 is 256214.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 4126492 and 4126501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4126523) 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, 2114 + ... + 3566.

It is an arithmetic number, because the mean of its divisors is an integer number (294435).

Almost surely, 2^4126520 is an apocalyptic number.

4126520 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 4126520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4710960).

4126520 is an abundant number, since it is smaller than the sum of its proper divisors (5295400).

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

4126520 is a wasteful number, since it uses less digits than its factorization.

4126520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535 (or 1531 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 4126520 is about 2031.3837648263. The cubic root of 4126520 is about 160.3964128774.

The spelling of 4126520 in words is "four million, one hundred twenty-six thousand, five hundred twenty".