33552140 has 24 divisors (see below), whose sum is σ = 70670880. Its totient is φ = 13380608.

The previous prime is 33552133. The next prime is 33552149. The reversal of 33552140 is 4125533.

It is a super-2 number, since 2×33552140² = 2251492197159200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33552149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4844 + ... + 9516.

It is an arithmetic number, because the mean of its divisors is an integer number (2944620).

Almost surely, 2^33552140 is an apocalyptic number.

It is an amenable number.

33552140 is an abundant number, since it is smaller than the sum of its proper divisors (37118740).

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

33552140 is a wasteful number, since it uses less digits than its factorization.

33552140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5041 (or 5039 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 33552140 is about 5792.4209101204. The cubic root of 33552140 is about 322.5324447057.

Adding to 33552140 its reverse (4125533), we get a palindrome (37677673).

The spelling of 33552140 in words is "thirty-three million, five hundred fifty-two thousand, one hundred forty".