5408351820 has 144 divisors (see below), whose sum is σ = 17091678240. Its totient is φ = 1383091200.

The previous prime is 5408351801. The next prime is 5408351821. The reversal of 5408351820 is 281538045.

It is a happy number.

5408351820 is a `hidden beast` number, since 5 + 40 + 83 + 518 + 20 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (5408351821) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 429210 + ... + 441630.

It is an arithmetic number, because the mean of its divisors is an integer number (118692210).

Almost surely, 2^5408351820 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 5408351820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8545839120).

5408351820 is an abundant number, since it is smaller than the sum of its proper divisors (11683326420).

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

5408351820 is a wasteful number, since it uses less digits than its factorization.

5408351820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12536 (or 12531 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 5408351820 is about 73541.4972651496. The cubic root of 5408351820 is about 1755.3146536903.

Adding to 5408351820 its reverse (281538045), we get a palindrome (5689889865).

The spelling of 5408351820 in words is "five billion, four hundred eight million, three hundred fifty-one thousand, eight hundred twenty".