5421224020 has 48 divisors (see below), whose sum is σ = 12000723840. Its totient is φ = 2051450496.

The previous prime is 5421223987. The next prime is 5421224021. The reversal of 5421224020 is 204221245.

It is a junction number, because it is equal to n+sod(n) for n = 5421223982 and 5421224000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5421224021) 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, 268809 + ... + 288271.

It is an arithmetic number, because the mean of its divisors is an integer number (250015080).

Almost surely, 2^5421224020 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 5421224020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6000361920).

5421224020 is an abundant number, since it is smaller than the sum of its proper divisors (6579499820).

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

5421224020 is a wasteful number, since it uses less digits than its factorization.

5421224020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20224 (or 20222 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 5421224020 is about 73628.9618288890. The cubic root of 5421224020 is about 1756.7061348707.

Adding to 5421224020 its reverse (204221245), we get a palindrome (5625445265).

It can be divided in two parts, 5421 and 224020, that added together give a square (229441 = 479²).

The spelling of 5421224020 in words is "five billion, four hundred twenty-one million, two hundred twenty-four thousand, twenty".