420513330 has 64 divisors (see below), whose sum is σ = 1021870080. Its totient is φ = 110744256.

The previous prime is 420513283. The next prime is 420513391. The reversal of 420513330 is 33315024.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 420513297 and 420513306.

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, 1598779 + ... + 1599041.

It is an arithmetic number, because the mean of its divisors is an integer number (15966720).

Almost surely, 2^420513330 is an apocalyptic number.

420513330 is an abundant number, since it is smaller than the sum of its proper divisors (601356750).

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

420513330 is a wasteful number, since it uses less digits than its factorization.

420513330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 420513330 is about 20506.4216771235. The cubic root of 420513330 is about 749.1922147341.

Adding to 420513330 its reverse (33315024), we get a palindrome (453828354).

The spelling of 420513330 in words is "four hundred twenty million, five hundred thirteen thousand, three hundred thirty".