4454179840 has 88 divisors (see below), whose sum is σ = 11656305792. Its totient is φ = 1619681280.

The previous prime is 4454179819. The next prime is 4454179841. The reversal of 4454179840 is 489714544.

It is a tau number, because it is divible by the number of its divisors (88).

It is not an unprimeable number, because it can be changed into a prime (4454179841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16777 + ... + 95863.

Almost surely, 2^4454179840 is an apocalyptic number.

4454179840 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 4454179840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5828152896).

4454179840 is an abundant number, since it is smaller than the sum of its proper divisors (7202125952).

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

4454179840 is a wasteful number, since it uses less digits than its factorization.

4454179840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79123 (or 79105 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 4454179840 is about 66739.6421926279. The cubic root of 4454179840 is about 1645.3409849212.

Subtracting from 4454179840 its reverse (489714544), we obtain a square (3964465296 = 62964²).

The spelling of 4454179840 in words is "four billion, four hundred fifty-four million, one hundred seventy-nine thousand, eight hundred forty".