4445545320 has 96 divisors (see below), whose sum is σ = 14460680520. Its totient is φ = 1184440320.

The previous prime is 4445545303. The next prime is 4445545333. The reversal of 4445545320 is 235455444.

4445545320 is a `hidden beast` number, since 44 + 45 + 545 + 32 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4372647876 + 72897444 = 66126^2 + 8538^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 462160 + ... + 471680.

Almost surely, 2^4445545320 is an apocalyptic number.

4445545320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4445545320 is an abundant number, since it is smaller than the sum of its proper divisors (10015135200).

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

4445545320 is a wasteful number, since it uses less digits than its factorization.

4445545320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10835 (or 10828 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

The square root of 4445545320 is about 66674.9227221149. The cubic root of 4445545320 is about 1644.2771213096.

The spelling of 4445545320 in words is "four billion, four hundred forty-five million, five hundred forty-five thousand, three hundred twenty".