330424434 has 80 divisors (see below), whose sum is σ = 779157720. Its totient is φ = 104509440.

The previous prime is 330424433. The next prime is 330424439. The reversal of 330424434 is 434424033.

It can be written as a sum of positive squares in 4 ways, for example, as 246647025 + 83777409 = 15705^2 + 9153^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 330424398 and 330424407.

It is not an unprimeable number, because it can be changed into a prime (330424433) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 286002 + ... + 287154.

Almost surely, 2^330424434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 330424434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (389578860).

330424434 is an abundant number, since it is smaller than the sum of its proper divisors (448733286).

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

330424434 is a wasteful number, since it uses less digits than its factorization.

330424434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257 (or 1248 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

The square root of 330424434 is about 18177.5805320730. The cubic root of 330424434 is about 691.3384605793.

Adding to 330424434 its reverse (434424033), we get a palindrome (764848467).

The spelling of 330424434 in words is "three hundred thirty million, four hundred twenty-four thousand, four hundred thirty-four".