1442040244 has 24 divisors (see below), whose sum is σ = 2569108136. Its totient is φ = 708048000.

The previous prime is 1442040241. The next prime is 1442040247. The reversal of 1442040244 is 4420402441.

It is an interprime number because it is at equal distance from previous prime (1442040241) and next prime (1442040247).

It can be written as a sum of positive squares in 4 ways, for example, as 150356644 + 1291683600 = 12262^2 + 35940^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442040241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156814 + ... + 165754.

Almost surely, 2^1442040244 is an apocalyptic number.

It is an amenable number.

1442040244 is a deficient number, since it is larger than the sum of its proper divisors (1127067892).

1442040244 is a wasteful number, since it uses less digits than its factorization.

1442040244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9667 (or 9665 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 1442040244 is about 37974.2049818031. The cubic root of 1442040244 is about 1129.7763005118.

Adding to 1442040244 its reverse (4420402441), we get a palindrome (5862442685).

The spelling of 1442040244 in words is "one billion, four hundred forty-two million, forty thousand, two hundred forty-four".