330913538 has 18 divisors (see below), whose sum is σ = 524645001. Its totient is φ = 156516984.

The previous prime is 330913537. The next prime is 330913543. The reversal of 330913538 is 835319033.

It can be written as a sum of positive squares in 2 ways, for example, as 190798969 + 140114569 = 13813^2 + 11837^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=12863.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 330913498 and 330913507.

It is not an unprimeable number, because it can be changed into a prime (330913537) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 488456 + ... + 489132.

Almost surely, 2^330913538 is an apocalyptic number.

330913538 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

330913538 is a deficient number, since it is larger than the sum of its proper divisors (193731463).

330913538 is an frugal number, since it uses more digits than its factorization.

330913538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394 (or 698 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 330913538 is about 18191.0290528051. The cubic root of 330913538 is about 691.6794056072.

The spelling of 330913538 in words is "three hundred thirty million, nine hundred thirteen thousand, five hundred thirty-eight".