420002234 has 4 divisors (see below), whose sum is σ = 630003354. Its totient is φ = 210001116.

The previous prime is 420002213. The next prime is 420002267. The reversal of 420002234 is 432200024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 418325209 + 1677025 = 20453^2 + 1295^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105000557 + ... + 105000560.

Almost surely, 2^420002234 is an apocalyptic number.

420002234 is a deficient number, since it is larger than the sum of its proper divisors (210001120).

420002234 is a wasteful number, since it uses less digits than its factorization.

420002234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210001119.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 420002234 is about 20493.9560358658. The cubic root of 420002234 is about 748.8885665085. Note that the first 3 decimals are identical.

Adding to 420002234 its reverse (432200024), we get a palindrome (852202258).

The spelling of 420002234 in words is "four hundred twenty million, two thousand, two hundred thirty-four".