5421422640 has 80 divisors (see below), whose sum is σ = 16828351488. Its totient is φ = 1443825408.

The previous prime is 5421422593. The next prime is 5421422647. The reversal of 5421422640 is 462241245.

It is a tau number, because it is divible by the number of its divisors (80).

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 = 5421422598 and 5421422607.

It is not an unprimeable number, because it can be changed into a prime (5421422647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174529 + ... + 203231.

Almost surely, 2^5421422640 is an apocalyptic number.

It is an amenable number.

5421422640 is an abundant number, since it is smaller than the sum of its proper divisors (11406928848).

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

5421422640 is a wasteful number, since it uses less digits than its factorization.

5421422640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29506 (or 29500 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 5421422640 is about 73630.3106064344. The cubic root of 5421422640 is about 1756.7275883721.

Adding to 5421422640 its reverse (462241245), we get a palindrome (5883663885).

The spelling of 5421422640 in words is "five billion, four hundred twenty-one million, four hundred twenty-two thousand, six hundred forty".