4442555540 has 24 divisors (see below), whose sum is σ = 9338204232. Its totient is φ = 1775338880.

The previous prime is 4442555539. The next prime is 4442555567. The reversal of 4442555540 is 455552444.

It can be written as a sum of positive squares in 4 ways, for example, as 428572804 + 4013982736 = 20702^2 + 63356^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4442555494 and 4442555503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83459 + ... + 125898.

It is an arithmetic number, because the mean of its divisors is an integer number (389091843).

Almost surely, 2^4442555540 is an apocalyptic number.

It is an amenable number.

4442555540 is an abundant number, since it is smaller than the sum of its proper divisors (4895648692).

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

4442555540 is a wasteful number, since it uses less digits than its factorization.

4442555540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210427 (or 210425 counting only the distinct ones).

The product of its (nonzero) digits is 320000, while the sum is 38.

The square root of 4442555540 is about 66652.4983777803. The cubic root of 4442555540 is about 1643.9084279342.

The spelling of 4442555540 in words is "four billion, four hundred forty-two million, five hundred fifty-five thousand, five hundred forty".