420355330 has 8 divisors (see below), whose sum is σ = 756639612. Its totient is φ = 168142128.

The previous prime is 420355303. The next prime is 420355363. The reversal of 420355330 is 33553024.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 394538769 + 25816561 = 19863^2 + 5081^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 420355295 and 420355304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21017757 + ... + 21017776.

Almost surely, 2^420355330 is an apocalyptic number.

420355330 is a deficient number, since it is larger than the sum of its proper divisors (336284282).

420355330 is a wasteful number, since it uses less digits than its factorization.

420355330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42035540.

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 420355330 is about 20502.5688634376. The cubic root of 420355330 is about 749.0983713368.

The spelling of 420355330 in words is "four hundred twenty million, three hundred fifty-five thousand, three hundred thirty".