1144015420 has 24 divisors (see below), whose sum is σ = 2404496304. Its totient is φ = 457213056.

The previous prime is 1144015417. The next prime is 1144015421. The reversal of 1144015420 is 245104411.

It is a junction number, because it is equal to n+sod(n) for n = 1144015391 and 1144015400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144015421) 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 7 ways as a sum of consecutive naturals, for example, 114 + ... + 47833.

It is an arithmetic number, because the mean of its divisors is an integer number (100187346).

Almost surely, 2^1144015420 is an apocalyptic number.

1144015420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144015420 is an abundant number, since it is smaller than the sum of its proper divisors (1260480884).

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

1144015420 is a wasteful number, since it uses less digits than its factorization.

1144015420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49149 (or 49147 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1144015420 is about 33823.2970007360. The cubic root of 1144015420 is about 1045.8690054057.

Adding to 1144015420 its reverse (245104411), we get a palindrome (1389119831).

The spelling of 1144015420 in words is "one billion, one hundred forty-four million, fifteen thousand, four hundred twenty".