4423542520 has 32 divisors (see below), whose sum is σ = 10274037120. Its totient is φ = 1712338560.

The previous prime is 4423542517. The next prime is 4423542547. The reversal of 4423542520 is 252453244.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

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, 1782447 + ... + 1784926.

It is an arithmetic number, because the mean of its divisors is an integer number (321063660).

Almost surely, 2^4423542520 is an apocalyptic number.

4423542520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4423542520 is an abundant number, since it is smaller than the sum of its proper divisors (5850494600).

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

4423542520 is a wasteful number, since it uses less digits than its factorization.

4423542520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3567415 (or 3567411 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 4423542520 is about 66509.7174854923. The cubic root of 4423542520 is about 1641.5599028831.

Adding to 4423542520 its reverse (252453244), we get a palindrome (4675995764).

The spelling of 4423542520 in words is "four billion, four hundred twenty-three million, five hundred forty-two thousand, five hundred twenty".