1242440441444 has 48 divisors (see below), whose sum is σ = 2274021848448. Its totient is φ = 592845293568.

The previous prime is 1242440441413. The next prime is 1242440441471. The reversal of 1242440441444 is 4441440442421.

It is a junction number, because it is equal to n+sod(n) for n = 1242440441398 and 1242440441407.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122078084 + ... + 122088260.

It is an arithmetic number, because the mean of its divisors is an integer number (47375455176).

Almost surely, 2^{1242440441444} is an apocalyptic number.

It is an amenable number.

1242440441444 is a deficient number, since it is larger than the sum of its proper divisors (1031581407004).

1242440441444 is a wasteful number, since it uses less digits than its factorization.

1242440441444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13124 (or 13122 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 38.

Adding to 1242440441444 its reverse (4441440442421), we get a palindrome (5683880883865).

The spelling of 1242440441444 in words is "one trillion, two hundred forty-two billion, four hundred forty million, four hundred forty-one thousand, four hundred forty-four".