420340330 has 32 divisors (see below), whose sum is σ = 763992000. Its totient is φ = 166505472.

The previous prime is 420340307. The next prime is 420340373. The reversal of 420340330 is 33043024.

It is a junction number, because it is equal to n+sod(n) for n = 420340298 and 420340307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 803449 + ... + 803971.

It is an arithmetic number, because the mean of its divisors is an integer number (23874750).

Almost surely, 2^420340330 is an apocalyptic number.

420340330 is a deficient number, since it is larger than the sum of its proper divisors (343651670).

420340330 is a wasteful number, since it uses less digits than its factorization.

420340330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 420340330 is about 20502.2030523551. The cubic root of 420340330 is about 749.0894609314.

Adding to 420340330 its reverse (33043024), we get a palindrome (453383354).

The spelling of 420340330 in words is "four hundred twenty million, three hundred forty thousand, three hundred thirty".