33853940 has 12 divisors (see below), whose sum is σ = 71093316. Its totient is φ = 13541568.

The previous prime is 33853931. The next prime is 33853973. The reversal of 33853940 is 4935833.

It can be written as a sum of positive squares in 2 ways, for example, as 17757796 + 16096144 = 4214^2 + 4012^2 .

It is a super-2 number, since 2×33853940² = 2292178507047200, 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 33853940.

It is a congruent number.

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, 846329 + ... + 846368.

It is an arithmetic number, because the mean of its divisors is an integer number (5924443).

Almost surely, 2^33853940 is an apocalyptic number.

It is an amenable number.

33853940 is an abundant number, since it is smaller than the sum of its proper divisors (37239376).

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

33853940 is a wasteful number, since it uses less digits than its factorization.

33853940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692706 (or 1692704 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 33853940 is about 5818.4138732132. The cubic root of 33853940 is about 323.4966145460.

The spelling of 33853940 in words is "thirty-three million, eight hundred fifty-three thousand, nine hundred forty".