4561144420 has 36 divisors (see below), whose sum is σ = 11142226620. Its totient is φ = 1563820608.

The previous prime is 4561144411. The next prime is 4561144429. The reversal of 4561144420 is 244411654.

It is an interprime number because it is at equal distance from previous prime (4561144411) and next prime (4561144429).

It can be written as a sum of positive squares in 2 ways, for example, as 1630221376 + 2930923044 = 40376^2 + 54138^2 .

It is not an unprimeable number, because it can be changed into a prime (4561144429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2326135 + ... + 2328094.

It is an arithmetic number, because the mean of its divisors is an integer number (309506295).

Almost surely, 2^4561144420 is an apocalyptic number.

It is an amenable number.

4561144420 is an abundant number, since it is smaller than the sum of its proper divisors (6581082200).

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

4561144420 is a wasteful number, since it uses less digits than its factorization.

4561144420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4654252 (or 4654243 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 4561144420 is about 67536.2452317272. The cubic root of 4561144420 is about 1658.4075816244.

The spelling of 4561144420 in words is "four billion, five hundred sixty-one million, one hundred forty-four thousand, four hundred twenty".