33440230 has 16 divisors (see below), whose sum is σ = 61819920. Its totient is φ = 13014432.

The previous prime is 33440221. The next prime is 33440233. The reversal of 33440230 is 3204433.

It is a super-2 number, since 2×33440230² = 2236497964905800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33440198 and 33440207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33440233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44820 + ... + 45559.

It is an arithmetic number, because the mean of its divisors is an integer number (3863745).

Almost surely, 2^33440230 is an apocalyptic number.

33440230 is a deficient number, since it is larger than the sum of its proper divisors (28379690).

33440230 is a wasteful number, since it uses less digits than its factorization.

33440230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90423.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 33440230 is about 5782.7528046770. The cubic root of 33440230 is about 322.1734530938.

Adding to 33440230 its reverse (3204433), we get a palindrome (36644663).

It can be divided in two parts, 33440 and 230, that added together give a triangular number (33670 = T₂₅₉).

The spelling of 33440230 in words is "thirty-three million, four hundred forty thousand, two hundred thirty".