33052140 has 72 divisors (see below), whose sum is σ = 109379088. Its totient is φ = 8012160.

The previous prime is 33052121. The next prime is 33052157. The reversal of 33052140 is 4125033.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6367 + ... + 10326.

It is an arithmetic number, because the mean of its divisors is an integer number (1519154).

Almost surely, 2^33052140 is an apocalyptic number.

33052140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33052140 is an abundant number, since it is smaller than the sum of its proper divisors (76326948).

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

33052140 is a wasteful number, since it uses less digits than its factorization.

33052140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16719 (or 16714 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 33052140 is about 5749.0990598528. The cubic root of 33052140 is about 320.9222742491.

Adding to 33052140 its reverse (4125033), we get a palindrome (37177173).

It can be divided in two parts, 3305 and 2140, that added together give a palindrome (5445).

The spelling of 33052140 in words is "thirty-three million, fifty-two thousand, one hundred forty".