420485880 has 64 divisors (see below), whose sum is σ = 1270715040. Its totient is φ = 111306752.

The previous prime is 420485869. The next prime is 420485881. The reversal of 420485880 is 88584024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420485881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3652 + ... + 29228.

Almost surely, 2^420485880 is an apocalyptic number.

420485880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420485880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (635357520).

420485880 is an abundant number, since it is smaller than the sum of its proper divisors (850229160).

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

420485880 is a wasteful number, since it uses less digits than its factorization.

420485880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25728 (or 25724 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 39.

The square root of 420485880 is about 20505.7523636662. The cubic root of 420485880 is about 749.1759126161.

The spelling of 420485880 in words is "four hundred twenty million, four hundred eighty-five thousand, eight hundred eighty".