5421050440 has 96 divisors (see below), whose sum is σ = 13954144680. Its totient is φ = 1883824128.

The previous prime is 5421050413. The next prime is 5421050471. The reversal of 5421050440 is 440501245.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 2100755556 + 3320294884 = 45834^2 + 57622^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132244 + ... + 168316.

Almost surely, 2^5421050440 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 5421050440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6977072340).

5421050440 is an abundant number, since it is smaller than the sum of its proper divisors (8533094240).

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

5421050440 is a wasteful number, since it uses less digits than its factorization.

5421050440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36131 (or 36110 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 5421050440 is about 73627.7830713380. The cubic root of 5421050440 is about 1756.6873855806.

Adding to 5421050440 its reverse (440501245), we get a palindrome (5861551685).

The spelling of 5421050440 in words is "five billion, four hundred twenty-one million, fifty thousand, four hundred forty".