33330040 has 16 divisors (see below), whose sum is σ = 74992680. Its totient is φ = 13332000.

The previous prime is 33330029. The next prime is 33330041. The reversal of 33330040 is 4003333.

It is a super-2 number, since 2×33330040² = 2221783132803200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33329996 and 33330023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33330041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416586 + ... + 416665.

Almost surely, 2^33330040 is an apocalyptic number.

It is an amenable number.

33330040 is an abundant number, since it is smaller than the sum of its proper divisors (41662640).

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

33330040 is a wasteful number, since it uses less digits than its factorization.

33330040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833262 (or 833258 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 16.

The square root of 33330040 is about 5773.2174738182. The cubic root of 33330040 is about 321.8191955916.

Adding to 33330040 its reverse (4003333), we get a palindrome (37333373).

The spelling of 33330040 in words is "thirty-three million, three hundred thirty thousand, forty".