1420144244 has 12 divisors (see below), whose sum is σ = 2494703904. Its totient is φ = 707371704.

The previous prime is 1420144241. The next prime is 1420144289. The reversal of 1420144244 is 4424410241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420144241) 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, 673922 + ... + 676025.

It is an arithmetic number, because the mean of its divisors is an integer number (207891992).

Almost surely, 2^1420144244 is an apocalyptic number.

It is an amenable number.

1420144244 is a deficient number, since it is larger than the sum of its proper divisors (1074559660).

1420144244 is a wasteful number, since it uses less digits than its factorization.

1420144244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350214 (or 1350212 counting only the distinct ones).

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

The square root of 1420144244 is about 37684.8012333885. The cubic root of 1420144244 is about 1124.0289217619.

Adding to 1420144244 its reverse (4424410241), we get a palindrome (5844554485).

The spelling of 1420144244 in words is "one billion, four hundred twenty million, one hundred forty-four thousand, two hundred forty-four".