4539215520 has 576 divisors, whose sum is σ = 18879194880. Its totient is φ = 970113024.

The previous prime is 4539215467. The next prime is 4539215521. The reversal of 4539215520 is 255129354.

It is a happy number.

4539215520 is a `hidden beast` number, since 45 + 3 + 92 + 1 + 5 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (4539215521) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 26238154 + ... + 26238326.

It is an arithmetic number, because the mean of its divisors is an integer number (32776380).

Almost surely, 2^4539215520 is an apocalyptic number.

4539215520 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 4539215520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9439597440).

4539215520 is an abundant number, since it is smaller than the sum of its proper divisors (14339979360).

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

4539215520 is a wasteful number, since it uses less digits than its factorization.

4539215520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 4539215520 is about 67373.7005069486. The cubic root of 4539215520 is about 1655.7455675756.

The spelling of 4539215520 in words is "four billion, five hundred thirty-nine million, two hundred fifteen thousand, five hundred twenty".