420798464 has 56 divisors (see below), whose sum is σ = 869216448. Its totient is φ = 203489280.

The previous prime is 420798451. The next prime is 420798481. The reversal of 420798464 is 464897024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253124 + ... + 254780.

Almost surely, 2^420798464 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 420798464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (434608224).

420798464 is an abundant number, since it is smaller than the sum of its proper divisors (448417984).

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

420798464 is an equidigital number, since it uses as much as digits as its factorization.

420798464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714 (or 1690 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 420798464 is about 20513.3728089751. The cubic root of 420798464 is about 749.3615093345.

The spelling of 420798464 in words is "four hundred twenty million, seven hundred ninety-eight thousand, four hundred sixty-four".