33408030 has 64 divisors (see below), whose sum is σ = 83135808. Its totient is φ = 8586240.

The previous prime is 33408017. The next prime is 33408031. The reversal of 33408030 is 3080433.

It is a super-2 number, since 2×33408030² = 2232192936961800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33407988 and 33408006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33408031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193024 + ... + 193196.

It is an arithmetic number, because the mean of its divisors is an integer number (1298997).

Almost surely, 2^33408030 is an apocalyptic number.

33408030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 33408030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41567904).

33408030 is an abundant number, since it is smaller than the sum of its proper divisors (49727778).

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

33408030 is a wasteful number, since it uses less digits than its factorization.

33408030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 33408030 is about 5779.9679929910. The cubic root of 33408030 is about 322.0700116530.

Adding to 33408030 its reverse (3080433), we get a palindrome (36488463).

The spelling of 33408030 in words is "thirty-three million, four hundred eight thousand, thirty".