4540215064 has 64 divisors (see below), whose sum is σ = 10623052800. Its totient is φ = 1767321600.

The previous prime is 4540215059. The next prime is 4540215079. The reversal of 4540215064 is 4605120454.

It is a happy number.

It is a super-2 number, since 2×4540215064² = 41227105654745048192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 865329 + ... + 870559.

It is an arithmetic number, because the mean of its divisors is an integer number (165985200).

Almost surely, 2^4540215064 is an apocalyptic number.

4540215064 is a gapful number since it is divisible by the number (44) 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 4540215064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5311526400).

4540215064 is an abundant number, since it is smaller than the sum of its proper divisors (6082837736).

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

4540215064 is a wasteful number, since it uses less digits than its factorization.

4540215064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6664 (or 6660 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 4540215064 is about 67381.1180079405. The cubic root of 4540215064 is about 1655.8670914437.

The spelling of 4540215064 in words is "four billion, five hundred forty million, two hundred fifteen thousand, sixty-four".