33406434 has 24 divisors (see below), whose sum is σ = 74877660. Its totient is φ = 10751328.

The previous prime is 33406433. The next prime is 33406447. The reversal of 33406434 is 43460433.

It can be written as a sum of positive squares in 2 ways, for example, as 32455809 + 950625 = 5697^2 + 975^2 .

It is a super-2 number, since 2×33406434² = 2231979665192712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33406398 and 33406407.

It is not an unprimeable number, because it can be changed into a prime (33406433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31477 + ... + 32520.

Almost surely, 2^33406434 is an apocalyptic number.

33406434 is an abundant number, since it is smaller than the sum of its proper divisors (41471226).

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

33406434 is a wasteful number, since it uses less digits than its factorization.

33406434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64034 (or 64031 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

The square root of 33406434 is about 5779.8299282937. The cubic root of 33406434 is about 322.0648828269.

Adding to 33406434 its reverse (43460433), we get a palindrome (76866867).

The spelling of 33406434 in words is "thirty-three million, four hundred six thousand, four hundred thirty-four".