1420440142444 has 6 divisors (see below), whose sum is σ = 2485770249284. Its totient is φ = 710220071220.

The previous prime is 1420440142427. The next prime is 1420440142523. The reversal of 1420440142444 is 4442410440241.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177555017802 + ... + 177555017809.

Almost surely, 2^{1420440142444} is an apocalyptic number.

It is an amenable number.

1420440142444 is a deficient number, since it is larger than the sum of its proper divisors (1065330106840).

1420440142444 is a wasteful number, since it uses less digits than its factorization.

1420440142444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355110035615 (or 355110035613 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 34.

Adding to 1420440142444 its reverse (4442410440241), we get a palindrome (5862850582685).

The spelling of 1420440142444 in words is "one trillion, four hundred twenty billion, four hundred forty million, one hundred forty-two thousand, four hundred forty-four".