33421434 has 32 divisors (see below), whose sum is σ = 69173376. Its totient is φ = 10756800.

The previous prime is 33421433. The next prime is 33421457. The reversal of 33421434 is 43412433.

It is a super-2 number, since 2×33421434² = 2233984501232712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33421433) 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, 33024 + ... + 34020.

It is an arithmetic number, because the mean of its divisors is an integer number (2161668).

Almost surely, 2^33421434 is an apocalyptic number.

33421434 is an abundant number, since it is smaller than the sum of its proper divisors (35751942).

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

33421434 is a wasteful number, since it uses less digits than its factorization.

33421434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190.

The product of its digits is 3456, while the sum is 24.

The square root of 33421434 is about 5781.1273987000. The cubic root of 33421434 is about 322.1130796340.

Adding to 33421434 its reverse (43412433), we get a palindrome (76833867).

Subtracting 33421434 from its reverse (43412433), we obtain a palindrome (9990999).

The spelling of 33421434 in words is "thirty-three million, four hundred twenty-one thousand, four hundred thirty-four".