5544667440 has 480 divisors, whose sum is σ = 21019654656. Its totient is φ = 1300561920.

The previous prime is 5544667439. The next prime is 5544667489. The reversal of 5544667440 is 447664455.

5544667440 is a `hidden beast` number, since 5 + 544 + 6 + 67 + 4 + 40 = 666.

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 95 ways as a sum of consecutive naturals, for example, 28145422 + ... + 28145618.

Almost surely, 2^5544667440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5544667440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10509827328).

5544667440 is an abundant number, since it is smaller than the sum of its proper divisors (15474987216).

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

5544667440 is a wasteful number, since it uses less digits than its factorization.

5544667440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 45.

The square root of 5544667440 is about 74462.5237283830. The cubic root of 5544667440 is about 1769.9398236747.

The spelling of 5544667440 in words is "five billion, five hundred forty-four million, six hundred sixty-seven thousand, four hundred forty".