4480973640 has 576 divisors, whose sum is σ = 17750743920. Its totient is φ = 973209600.

The previous prime is 4480973621. The next prime is 4480973671. The reversal of 4480973640 is 463790844.

It can be written as a sum of positive squares in 8 ways, for example, as 46212804 + 4434760836 = 6798^2 + 66594^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 23217384 + ... + 23217576.

Almost surely, 2^4480973640 is an apocalyptic number.

4480973640 is a gapful number since it is divisible by the number (40) 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 4480973640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8875371960).

4480973640 is an abundant number, since it is smaller than the sum of its proper divisors (13269770280).

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

4480973640 is a wasteful number, since it uses less digits than its factorization.

4480973640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 4480973640 is about 66940.0749924886. The cubic root of 4480973640 is about 1648.6335353271.

The spelling of 4480973640 in words is "four billion, four hundred eighty million, nine hundred seventy-three thousand, six hundred forty".