33221434 has 16 divisors (see below), whose sum is σ = 52914600. Its totient is φ = 15588864.

The previous prime is 33221431. The next prime is 33221459. The reversal of 33221434 is 43412233.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 32524209 + 697225 = 5703^2 + 835^2 .

It is a super-2 number, since 2×33221434² = 2207327354032712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33221431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12712 + ... + 15100.

Almost surely, 2^33221434 is an apocalyptic number.

33221434 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

33221434 is a deficient number, since it is larger than the sum of its proper divisors (19693166).

33221434 is a wasteful number, since it uses less digits than its factorization.

33221434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2817.

The product of its digits is 1728, while the sum is 22.

The square root of 33221434 is about 5763.8037787558. The cubic root of 33221434 is about 321.4692657425.

Adding to 33221434 its reverse (43412233), we get a palindrome (76633667).

The spelling of 33221434 in words is "thirty-three million, two hundred twenty-one thousand, four hundred thirty-four".