420044867736 has 128 divisors (see below), whose sum is σ = 1181246976000. Its totient is φ = 123576058368.

The previous prime is 420044867731. The next prime is 420044867783. The reversal of 420044867736 is 637768440024.

It is a super-2 number, since 2×420044867736² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420044867731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 706585 + ... + 1157303.

It is an arithmetic number, because the mean of its divisors is an integer number (9228492000).

Almost surely, 2^420044867736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420044867736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (590623488000).

420044867736 is an abundant number, since it is smaller than the sum of its proper divisors (761202108264).

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

420044867736 is a wasteful number, since it uses less digits than its factorization.

420044867736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450873 (or 450869 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 51.

The spelling of 420044867736 in words is "four hundred twenty billion, forty-four million, eight hundred sixty-seven thousand, seven hundred thirty-six".