33366140 has 12 divisors (see below), whose sum is σ = 70068936. Its totient is φ = 13346448.

The previous prime is 33366139. The next prime is 33366143. The reversal of 33366140 is 4166333.

It is a super-2 number, since 2×33366140² = 2226598596999200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33366143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834134 + ... + 834173.

It is an arithmetic number, because the mean of its divisors is an integer number (5839078).

Almost surely, 2^33366140 is an apocalyptic number.

It is an amenable number.

33366140 is an abundant number, since it is smaller than the sum of its proper divisors (36702796).

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

33366140 is a wasteful number, since it uses less digits than its factorization.

33366140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668316 (or 1668314 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 33366140 is about 5776.3431338521. The cubic root of 33366140 is about 321.9353418777.

The spelling of 33366140 in words is "thirty-three million, three hundred sixty-six thousand, one hundred forty".