33500140 has 12 divisors (see below), whose sum is σ = 70350336. Its totient is φ = 13400048.

The previous prime is 33500111. The next prime is 33500153. The reversal of 33500140 is 4100533.

It is a super-2 number, since 2×33500140² = 2244518760039200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837484 + ... + 837523.

It is an arithmetic number, because the mean of its divisors is an integer number (5862528).

Almost surely, 2^33500140 is an apocalyptic number.

It is an amenable number.

33500140 is an abundant number, since it is smaller than the sum of its proper divisors (36850196).

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

33500140 is a wasteful number, since it uses less digits than its factorization.

33500140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675016 (or 1675014 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 33500140 is about 5787.9305455404. The cubic root of 33500140 is about 322.3657354288.

Adding to 33500140 its reverse (4100533), we get a palindrome (37600673).

The spelling of 33500140 in words is "thirty-three million, five hundred thousand, one hundred forty".