420690234 has 16 divisors (see below), whose sum is σ = 842088672. Its totient is φ = 140112048.

The previous prime is 420690233. The next prime is 420690241. The reversal of 420690234 is 432096024.

It is not an unprimeable number, because it can be changed into a prime (420690233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21624 + ... + 36179.

It is an arithmetic number, because the mean of its divisors is an integer number (52630542).

Almost surely, 2^420690234 is an apocalyptic number.

420690234 is an abundant number, since it is smaller than the sum of its proper divisors (421398438).

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

420690234 is a wasteful number, since it uses less digits than its factorization.

420690234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59021.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 420690234 is about 20510.7346041043. The cubic root of 420690234 is about 749.2972581887.

The spelling of 420690234 in words is "four hundred twenty million, six hundred ninety thousand, two hundred thirty-four".