5401345440 has 96 divisors (see below), whose sum is σ = 17090873856. Its totient is φ = 1433871360.

The previous prime is 5401345427. The next prime is 5401345457. The reversal of 5401345440 is 445431045.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 5401345398 and 5401345407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81810 + ... + 132270.

It is an arithmetic number, because the mean of its divisors is an integer number (178029936).

Almost surely, 2^5401345440 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 5401345440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8545436928).

5401345440 is an abundant number, since it is smaller than the sum of its proper divisors (11689528416).

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

5401345440 is a wasteful number, since it uses less digits than its factorization.

5401345440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50702 (or 50694 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 5401345440 is about 73493.8462730044. The cubic root of 5401345440 is about 1754.5563378810.

Adding to 5401345440 its reverse (445431045), we get a palindrome (5846776485).

The spelling of 5401345440 in words is "five billion, four hundred one million, three hundred forty-five thousand, four hundred forty".