420669234 has 32 divisors (see below), whose sum is σ = 984024000. Its totient is φ = 132842592.

The previous prime is 420669217. The next prime is 420669257. The reversal of 420669234 is 432966024.

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, 203979 + ... + 206030.

It is an arithmetic number, because the mean of its divisors is an integer number (30750750).

Almost surely, 2^420669234 is an apocalyptic number.

420669234 is an abundant number, since it is smaller than the sum of its proper divisors (563354766).

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

420669234 is a wasteful number, since it uses less digits than its factorization.

420669234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410039 (or 410033 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 420669234 is about 20510.2226706586. Note that the first 3 decimals coincide. The cubic root of 420669234 is about 749.2847901834.

It can be divided in two parts, 420669 and 234, that added together give a triangular number (420903 = T₉₁₇).

The spelling of 420669234 in words is "four hundred twenty million, six hundred sixty-nine thousand, two hundred thirty-four".