5405321240 has 64 divisors (see below), whose sum is σ = 13349180160. Its totient is φ = 1953486720.

The previous prime is 5405321221. The next prime is 5405321323. The reversal of 5405321240 is 421235045.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34037 + ... + 109403.

It is an arithmetic number, because the mean of its divisors is an integer number (208580940).

Almost surely, 2^5405321240 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 5405321240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6674590080).

5405321240 is an abundant number, since it is smaller than the sum of its proper divisors (7943858920).

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

5405321240 is a wasteful number, since it uses less digits than its factorization.

5405321240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75552 (or 75548 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 5405321240 is about 73520.8898205129. The cubic root of 5405321240 is about 1754.9867278212.

Adding to 5405321240 its reverse (421235045), we get a palindrome (5826556285).

The spelling of 5405321240 in words is "five billion, four hundred five million, three hundred twenty-one thousand, two hundred forty".