33140532 has 12 divisors (see below), whose sum is σ = 77327936. Its totient is φ = 11046840.

The previous prime is 33140509. The next prime is 33140537. The reversal of 33140532 is 23504133.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×33140532² = 2196589722486048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33140499 and 33140508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33140537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1380844 + ... + 1380867.

Almost surely, 2^33140532 is an apocalyptic number.

It is an amenable number.

33140532 is an abundant number, since it is smaller than the sum of its proper divisors (44187404).

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

33140532 is a wasteful number, since it uses less digits than its factorization.

33140532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2761718 (or 2761716 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 33140532 is about 5756.7813924102. The cubic root of 33140532 is about 321.2081025568.

Adding to 33140532 its reverse (23504133), we get a palindrome (56644665).

The spelling of 33140532 in words is "thirty-three million, one hundred forty thousand, five hundred thirty-two".