5405885540 has 72 divisors (see below), whose sum is σ = 12495099960. Its totient is φ = 1963118080.

The previous prime is 5405885531. The next prime is 5405885581. The reversal of 5405885540 is 455885045.

It can be written as a sum of positive squares in 4 ways, for example, as 1073086564 + 4332798976 = 32758^2 + 65824^2 .

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 5405885491 and 5405885500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3118514 + ... + 3120246.

It is an arithmetic number, because the mean of its divisors is an integer number (173543055).

Almost surely, 2^5405885540 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 5405885540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6247549980).

5405885540 is an abundant number, since it is smaller than the sum of its proper divisors (7089214420).

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

5405885540 is a wasteful number, since it uses less digits than its factorization.

5405885540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3053 (or 3040 counting only the distinct ones).

The product of its (nonzero) digits is 640000, while the sum is 44.

The square root of 5405885540 is about 73524.7274051390. The cubic root of 5405885540 is about 1755.0477975527.

The spelling of 5405885540 in words is "five billion, four hundred five million, eight hundred eighty-five thousand, five hundred forty".