5424000021 has 24 divisors (see below), whose sum is σ = 8556993120. Its totient is φ = 3283394400.

The previous prime is 5423999993. The next prime is 5424000041. The reversal of 5424000021 is 1200004245.

It is not a de Polignac number, because 5424000021 - 2¹¹ = 5423997973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5423999958 and 5424000003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5424000041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53151 + ... + 116931.

It is an arithmetic number, because the mean of its divisors is an integer number (356541380).

Almost surely, 2^5424000021 is an apocalyptic number.

It is an amenable number.

5424000021 is a deficient number, since it is larger than the sum of its proper divisors (3132993099).

5424000021 is a wasteful number, since it uses less digits than its factorization.

5424000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64657 (or 64654 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 5424000021 is about 73647.8107006583. The cubic root of 5424000021 is about 1757.0059309948.

Adding to 5424000021 its reverse (1200004245), we get a palindrome (6624004266).

The spelling of 5424000021 in words is "five billion, four hundred twenty-four million, twenty-one", and thus it is an aban number.