420337228 has 24 divisors (see below), whose sum is σ = 779078720. Its totient is φ = 197879760.

The previous prime is 420337217. The next prime is 420337237. The reversal of 420337228 is 822733024.

It is a self number, because there is not a number n which added to its sum of digits gives 420337228.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4578 + ... + 29353.

Almost surely, 2^420337228 is an apocalyptic number.

It is an amenable number.

420337228 is a deficient number, since it is larger than the sum of its proper divisors (358741492).

420337228 is a wasteful number, since it uses less digits than its factorization.

420337228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34117 (or 34115 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 420337228 is about 20502.1274018088. The cubic root of 420337228 is about 749.0876182331.

The spelling of 420337228 in words is "four hundred twenty million, three hundred thirty-seven thousand, two hundred twenty-eight".