4034520 has 96 divisors (see below), whose sum is σ = 14994720. Its totient is φ = 921600.

The previous prime is 4034507. The next prime is 4034543. The reversal of 4034520 is 254304.

It is a happy number.

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 = 4034493 and 4034502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1720 + ... + 3320.

It is an arithmetic number, because the mean of its divisors is an integer number (156195).

Almost surely, 2^4034520 is an apocalyptic number.

4034520 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 4034520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7497360).

4034520 is an abundant number, since it is smaller than the sum of its proper divisors (10960200).

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

4034520 is a wasteful number, since it uses less digits than its factorization.

4034520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625 (or 1618 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 4034520 is about 2008.6114606862. The cubic root of 4034520 is about 159.1954402202.

Adding to 4034520 its reverse (254304), we get a palindrome (4288824).

It can be divided in two parts, 4034 and 520, that added together give a palindrome (4554).

The spelling of 4034520 in words is "four million, thirty-four thousand, five hundred twenty".