33652140 has 24 divisors (see below), whose sum is σ = 94226160. Its totient is φ = 8973888.

The previous prime is 33652139. The next prime is 33652147. The reversal of 33652140 is 4125633.

It is a happy number.

It is a super-2 number, since 2×33652140² = 2264933053159200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33652140.

It is not an unprimeable number, because it can be changed into a prime (33652147) 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, 280375 + ... + 280494.

It is an arithmetic number, because the mean of its divisors is an integer number (3926090).

Almost surely, 2^33652140 is an apocalyptic number.

33652140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33652140 is an abundant number, since it is smaller than the sum of its proper divisors (60574020).

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

33652140 is a wasteful number, since it uses less digits than its factorization.

33652140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560881 (or 560879 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 33652140 is about 5801.0464573213. The cubic root of 33652140 is about 322.8525559764.

Adding to 33652140 its reverse (4125633), we get a palindrome (37777773).

The spelling of 33652140 in words is "thirty-three million, six hundred fifty-two thousand, one hundred forty".