420340144444 has 48 divisors (see below), whose sum is σ = 805579084800. Its totient is φ = 190324304000.

The previous prime is 420340144381. The next prime is 420340144453. The reversal of 420340144444 is 444441043024.

It is a congruent number.

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, 11974719 + ... + 12009769.

It is an arithmetic number, because the mean of its divisors is an integer number (16782897600).

Almost surely, 2^420340144444 is an apocalyptic number.

420340144444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

420340144444 is a deficient number, since it is larger than the sum of its proper divisors (385238940356).

420340144444 is a wasteful number, since it uses less digits than its factorization.

420340144444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36114 (or 36112 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 34.

Adding to 420340144444 its reverse (444441043024), we get a palindrome (864781187468).

The spelling of 420340144444 in words is "four hundred twenty billion, three hundred forty million, one hundred forty-four thousand, four hundred forty-four".