420354790720 has 56 divisors (see below), whose sum is σ = 1001809791144. Its totient is φ = 168000823296.

The previous prime is 420354790703. The next prime is 420354790747. The reversal of 420354790720 is 27097453024.

It can be written as a sum of positive squares in 4 ways, for example, as 886133824 + 419468656896 = 29768^2 + 647664^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168789 + ... + 932308.

Almost surely, 2^420354790720 is an apocalyptic number.

420354790720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420354790720 is an abundant number, since it is smaller than the sum of its proper divisors (581455000424).

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

420354790720 is a wasteful number, since it uses less digits than its factorization.

420354790720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102307 (or 1102297 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 420354790720 in words is "four hundred twenty billion, three hundred fifty-four million, seven hundred ninety thousand, seven hundred twenty".