420739206 has 32 divisors (see below), whose sum is σ = 864235008. Its totient is φ = 136487520.

The previous prime is 420739199. The next prime is 420739217. The reversal of 420739206 is 602937024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46921 + ... + 55163.

It is an arithmetic number, because the mean of its divisors is an integer number (27007344).

Almost surely, 2^420739206 is an apocalyptic number.

420739206 is an abundant number, since it is smaller than the sum of its proper divisors (443495802).

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

420739206 is a wasteful number, since it uses less digits than its factorization.

420739206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8476.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 420739206 is about 20511.9283832603. The cubic root of 420739206 is about 749.3263319652.

The spelling of 420739206 in words is "four hundred twenty million, seven hundred thirty-nine thousand, two hundred six".