420888417252 has 24 divisors (see below), whose sum is σ = 991796471232. Its totient is φ = 138907068000.

The previous prime is 420888417251. The next prime is 420888417293. The reversal of 420888417252 is 252714888024.

It is a junction number, because it is equal to n+sod(n) for n = 420888417195 and 420888417204.

It is not an unprimeable number, because it can be changed into a prime (420888417251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173632624 + ... + 173635047.

It is an arithmetic number, because the mean of its divisors is an integer number (41324852968).

Almost surely, 2^420888417252 is an apocalyptic number.

It is an amenable number.

420888417252 is an abundant number, since it is smaller than the sum of its proper divisors (570908053980).

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

420888417252 is a wasteful number, since it uses less digits than its factorization.

420888417252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347267779 (or 347267777 counting only the distinct ones).

The product of its (nonzero) digits is 2293760, while the sum is 51.

The spelling of 420888417252 in words is "four hundred twenty billion, eight hundred eighty-eight million, four hundred seventeen thousand, two hundred fifty-two".