4540220454 has 128 divisors (see below), whose sum is σ = 11759385600. Its totient is φ = 1133959680.

The previous prime is 4540220453. The next prime is 4540220479.

4540220454 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×4540220454² = 41227203541839932232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4540220453) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4246632 + ... + 4247700.

It is an arithmetic number, because the mean of its divisors is an integer number (91870200).

Almost surely, 2^4540220454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4540220454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5879692800).

4540220454 is an abundant number, since it is smaller than the sum of its proper divisors (7219165146).

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

4540220454 is a wasteful number, since it uses less digits than its factorization.

4540220454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438.

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

The square root of 4540220454 is about 67381.1580042967. The cubic root of 4540220454 is about 1655.8677467078.

It can be divided in two parts, 45402 and 20454, that added together give a palindrome (65856).

The spelling of 4540220454 in words is "four billion, five hundred forty million, two hundred twenty thousand, four hundred fifty-four".