420538704 has 80 divisors (see below), whose sum is σ = 1168020480. Its totient is φ = 129962880.

The previous prime is 420538687. The next prime is 420538709. The reversal of 420538704 is 407835024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420538709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37959 + ... + 47769.

It is an arithmetic number, because the mean of its divisors is an integer number (14600256).

Almost surely, 2^420538704 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 420538704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (584010240).

420538704 is an abundant number, since it is smaller than the sum of its proper divisors (747481776).

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

420538704 is a wasteful number, since it uses less digits than its factorization.

420538704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9888 (or 9882 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 420538704 is about 20507.0403520352. The cubic root of 420538704 is about 749.2072833178.

The spelling of 420538704 in words is "four hundred twenty million, five hundred thirty-eight thousand, seven hundred four".