420334444512 has 72 divisors (see below), whose sum is σ = 1195391158416. Its totient is φ = 140103853056.

The previous prime is 420334444507. The next prime is 420334444531. The reversal of 420334444512 is 215444433024.

420334444512 is a `hidden beast` number, since 4 + 203 + 3 + 4 + 4 + 445 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8273973 + ... + 8324619.

It is an arithmetic number, because the mean of its divisors is an integer number (16602654978).

Almost surely, 2^420334444512 is an apocalyptic number.

It is an amenable number.

420334444512 is an abundant number, since it is smaller than the sum of its proper divisors (775056713904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420334444512 is a wasteful number, since it uses less digits than its factorization.

420334444512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79480 (or 79469 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 36.

Adding to 420334444512 its reverse (215444433024), we get a palindrome (635778877536).

The spelling of 420334444512 in words is "four hundred twenty billion, three hundred thirty-four million, four hundred forty-four thousand, five hundred twelve".