4144421240 has 16 divisors (see below), whose sum is σ = 9324947880. Its totient is φ = 1657768480.

The previous prime is 4144421209. The next prime is 4144421243. The reversal of 4144421240 is 421244414.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4144421243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51805226 + ... + 51805305.

Almost surely, 2^4144421240 is an apocalyptic number.

4144421240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4144421240 is an abundant number, since it is smaller than the sum of its proper divisors (5180526640).

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

4144421240 is a wasteful number, since it uses less digits than its factorization.

4144421240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103610542 (or 103610538 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

The square root of 4144421240 is about 64377.1794970858. The cubic root of 4144421240 is about 1606.2801664004.

Adding to 4144421240 its reverse (421244414), we get a palindrome (4565665654).

The spelling of 4144421240 in words is "four billion, one hundred forty-four million, four hundred twenty-one thousand, two hundred forty".