5405405544 has 384 divisors, whose sum is σ = 19586810880. Its totient is φ = 1303603200.

The previous prime is 5405405543. The next prime is 5405405569. The reversal of 5405405544 is 4455045045.

5405405544 is a `hidden beast` number, since 54 + 0 + 54 + 0 + 554 + 4 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 5405405499 and 5405405508.

It is not an unprimeable number, because it can be changed into a prime (5405405543) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7822239 + ... + 7822929.

It is an arithmetic number, because the mean of its divisors is an integer number (51007320).

Almost surely, 2^5405405544 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 5405405544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9793405440).

5405405544 is an abundant number, since it is smaller than the sum of its proper divisors (14181405336).

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

5405405544 is a wasteful number, since it uses less digits than its factorization.

5405405544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821 (or 814 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 36.

The square root of 5405405544 is about 73521.4631519259. The cubic root of 5405405544 is about 1754.9958516472.

The spelling of 5405405544 in words is "five billion, four hundred five million, four hundred five thousand, five hundred forty-four".