4542440520 has 128 divisors (see below), whose sum is σ = 14125104000. Its totient is φ = 1167237120.

The previous prime is 4542440519. The next prime is 4542440611. The reversal of 4542440520 is 250442454.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2403736 + ... + 2405624.

It is an arithmetic number, because the mean of its divisors is an integer number (110352375).

Almost surely, 2^4542440520 is an apocalyptic number.

4542440520 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 4542440520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7062552000).

4542440520 is an abundant number, since it is smaller than the sum of its proper divisors (9582663480).

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

4542440520 is a wasteful number, since it uses less digits than its factorization.

4542440520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623 (or 2619 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

The square root of 4542440520 is about 67397.6299286555. The cubic root of 4542440520 is about 1656.1375967957.

Adding to 4542440520 its reverse (250442454), we get a palindrome (4792882974).

The spelling of 4542440520 in words is "four billion, five hundred forty-two million, four hundred forty thousand, five hundred twenty".