420630234 has 64 divisors (see below), whose sum is σ = 890628480. Its totient is φ = 132295680.

The previous prime is 420630173. The next prime is 420630241. The reversal of 420630234 is 432036024.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1059324 + ... + 1059720.

It is an arithmetic number, because the mean of its divisors is an integer number (13916070).

Almost surely, 2^420630234 is an apocalyptic number.

420630234 is an abundant number, since it is smaller than the sum of its proper divisors (469998246).

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

420630234 is a wasteful number, since it uses less digits than its factorization.

420630234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 420630234 is about 20509.2719032149. The cubic root of 420630234 is about 749.2616342154.

Adding to 420630234 its reverse (432036024), we get a palindrome (852666258).

The spelling of 420630234 in words is "four hundred twenty million, six hundred thirty thousand, two hundred thirty-four".