5421455344 has 40 divisors (see below), whose sum is σ = 10897740000. Its totient is φ = 2609677056.

The previous prime is 5421455339. The next prime is 5421455393. The reversal of 5421455344 is 4435541245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145197 + ... + 178675.

It is an arithmetic number, because the mean of its divisors is an integer number (272443500).

Almost surely, 2^5421455344 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 5421455344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5448870000).

5421455344 is an abundant number, since it is smaller than the sum of its proper divisors (5476284656).

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

5421455344 is a wasteful number, since it uses less digits than its factorization.

5421455344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33865 (or 33859 counting only the distinct ones).

The product of its digits is 192000, while the sum is 37.

The square root of 5421455344 is about 73630.5326885525. The cubic root of 5421455344 is about 1756.7311207723.

Adding to 5421455344 its reverse (4435541245), we get a palindrome (9856996589).

The spelling of 5421455344 in words is "five billion, four hundred twenty-one million, four hundred fifty-five thousand, three hundred forty-four".