420550832 has 20 divisors (see below), whose sum is σ = 877495920. Its totient is φ = 194100288.

The previous prime is 420550831. The next prime is 420550841. The reversal of 420550832 is 238055024.

It is a junction number, because it is equal to n+sod(n) for n = 420550795 and 420550804.

It is not an unprimeable number, because it can be changed into a prime (420550831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010732 + ... + 1011147.

It is an arithmetic number, because the mean of its divisors is an integer number (43874796).

Almost surely, 2^420550832 is an apocalyptic number.

It is an amenable number.

420550832 is an abundant number, since it is smaller than the sum of its proper divisors (456945088).

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

420550832 is a wasteful number, since it uses less digits than its factorization.

420550832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021900 (or 2021894 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 420550832 is about 20507.3360532274. The cubic root of 420550832 is about 749.2144854282.

The spelling of 420550832 in words is "four hundred twenty million, five hundred fifty thousand, eight hundred thirty-two".