420321400444 has 24 divisors (see below), whose sum is σ = 802916171568. Its totient is φ = 190939847040.

The previous prime is 420321400423. The next prime is 420321400453. The reversal of 420321400444 is 444004123024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2809639 + ... + 2955454.

It is an arithmetic number, because the mean of its divisors is an integer number (33454840482).

Almost surely, 2^420321400444 is an apocalyptic number.

420321400444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

420321400444 is a deficient number, since it is larger than the sum of its proper divisors (382594771124).

420321400444 is a wasteful number, since it uses less digits than its factorization.

420321400444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5766765 (or 5766763 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 420321400444 its reverse (444004123024), we get a palindrome (864325523468).

The spelling of 420321400444 in words is "four hundred twenty billion, three hundred twenty-one million, four hundred thousand, four hundred forty-four".