5144240421 has 20 divisors (see below), whose sum is σ = 8018722272. Its totient is φ = 3280384008.

The previous prime is 5144240411. The next prime is 5144240447. The reversal of 5144240421 is 1240424415.

It is not a de Polignac number, because 5144240421 - 2⁹ = 5144239909 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5144240411) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1378771 + ... + 1382496.

Almost surely, 2^5144240421 is an apocalyptic number.

It is an amenable number.

5144240421 is a deficient number, since it is larger than the sum of its proper divisors (2874481851).

5144240421 is a wasteful number, since it uses less digits than its factorization.

5144240421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2761302 (or 2761293 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 5144240421 is about 71723.3603576966. The cubic root of 5144240421 is about 1726.2634917095.

Adding to 5144240421 its reverse (1240424415), we get a palindrome (6384664836).

The spelling of 5144240421 in words is "five billion, one hundred forty-four million, two hundred forty thousand, four hundred twenty-one".