33434220 has 48 divisors (see below), whose sum is σ = 95800320. Its totient is φ = 8707776.

The previous prime is 33434209. The next prime is 33434221. The reversal of 33434220 is 2243433.

It is a super-2 number, since 2×33434220² = 2235694134016800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33434221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3900 + ... + 9059.

It is an arithmetic number, because the mean of its divisors is an integer number (1995840).

Almost surely, 2^33434220 is an apocalyptic number.

33434220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33434220 is an abundant number, since it is smaller than the sum of its proper divisors (62366100).

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

33434220 is a wasteful number, since it uses less digits than its factorization.

33434220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13014 (or 13012 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 33434220 is about 5782.2331326227. The cubic root of 33434220 is about 322.1541512084.

Adding to 33434220 its reverse (2243433), we get a palindrome (35677653).

The spelling of 33434220 in words is "thirty-three million, four hundred thirty-four thousand, two hundred twenty".