420622449884 has 72 divisors (see below), whose sum is σ = 964518353568. Its totient is φ = 156611819520.

The previous prime is 420622449881. The next prime is 420622449917. The reversal of 420622449884 is 488944226024.

It is a super-2 number, since 2×420622449884² (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 (420622449881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2533937 + ... + 2694824.

It is an arithmetic number, because the mean of its divisors is an integer number (13396088244).

Almost surely, 2^420622449884 is an apocalyptic number.

It is an amenable number.

420622449884 is an abundant number, since it is smaller than the sum of its proper divisors (543895903684).

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

420622449884 is a wasteful number, since it uses less digits than its factorization.

420622449884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5228815 (or 5228800 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 53.

The spelling of 420622449884 in words is "four hundred twenty billion, six hundred twenty-two million, four hundred forty-nine thousand, eight hundred eighty-four".