1421440240442 has 8 divisors (see below), whose sum is σ = 2200939727232. Its totient is φ = 687793664700.

The previous prime is 1421440240439. The next prime is 1421440240471. The reversal of 1421440240442 is 2440420441241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1421440240399 and 1421440240408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11463227684 + ... + 11463227807.

It is an arithmetic number, because the mean of its divisors is an integer number (275117465904).

Almost surely, 2^{1421440240442} is an apocalyptic number.

1421440240442 is a deficient number, since it is larger than the sum of its proper divisors (779499486790).

1421440240442 is a wasteful number, since it uses less digits than its factorization.

1421440240442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22926455524.

The product of its (nonzero) digits is 32768, while the sum is 32.

Adding to 1421440240442 its reverse (2440420441241), we get a palindrome (3861860681683).

The spelling of 1421440240442 in words is "one trillion, four hundred twenty-one billion, four hundred forty million, two hundred forty thousand, four hundred forty-two".