33640132 has 6 divisors (see below), whose sum is σ = 58870238. Its totient is φ = 16820064.

The previous prime is 33640121. The next prime is 33640133. The reversal of 33640132 is 23104633.

It can be written as a sum of positive squares in only one way, i.e., 33570436 + 69696 = 5794^2 + 264^2 .

It is a super-2 number, since 2×33640132² = 2263316961954848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33640133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4205013 + ... + 4205020.

Almost surely, 2^33640132 is an apocalyptic number.

It is an amenable number.

33640132 is a deficient number, since it is larger than the sum of its proper divisors (25230106).

33640132 is a wasteful number, since it uses less digits than its factorization.

33640132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8410037 (or 8410035 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 33640132 is about 5800.0113792992. The cubic root of 33640132 is about 322.8141505466.

Adding to 33640132 its reverse (23104633), we get a palindrome (56744765).

The spelling of 33640132 in words is "thirty-three million, six hundred forty thousand, one hundred thirty-two".