33008140 has 48 divisors (see below), whose sum is σ = 76930560. Its totient is φ = 11794880.

The previous prime is 33008123. The next prime is 33008161. The reversal of 33008140 is 4180033.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11709 + ... + 14251.

It is an arithmetic number, because the mean of its divisors is an integer number (1602720).

Almost surely, 2^33008140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33008140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38465280).

33008140 is an abundant number, since it is smaller than the sum of its proper divisors (43922420).

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

33008140 is a wasteful number, since it uses less digits than its factorization.

33008140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622 (or 2620 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 33008140 is about 5745.2710989126. The cubic root of 33008140 is about 320.7798038915.

Adding to 33008140 its reverse (4180033), we get a palindrome (37188173).

The spelling of 33008140 in words is "thirty-three million, eight thousand, one hundred forty".