20010330 has 24 divisors (see below), whose sum is σ = 52027092. Its totient is φ = 5336064.

The previous prime is 20010323. The next prime is 20010349. The reversal of 20010330 is 3301002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20007729 + 2601 = 4473^2 + 51^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111079 + ... + 111258.

Almost surely, 2^20010330 is an apocalyptic number.

20010330 is an abundant number, since it is smaller than the sum of its proper divisors (32016762).

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

20010330 is a wasteful number, since it uses less digits than its factorization.

20010330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222350 (or 222347 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 20010330 is about 4473.2907350182. The cubic root of 20010330 is about 271.4884868392.

Adding to 20010330 its reverse (3301002), we get a palindrome (23311332).

The spelling of 20010330 in words is "twenty million, ten thousand, three hundred thirty".