33840070 has 24 divisors (see below), whose sum is σ = 66955392. Its totient is φ = 12305040.

The previous prime is 33840049. The next prime is 33840073. The reversal of 33840070 is 7004833.

It is a super-2 number, since 2×33840070² = 2290300675209800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33840073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12774 + ... + 15193.

It is an arithmetic number, because the mean of its divisors is an integer number (2789808).

Almost surely, 2^33840070 is an apocalyptic number.

33840070 is a deficient number, since it is larger than the sum of its proper divisors (33115322).

33840070 is a wasteful number, since it uses less digits than its factorization.

33840070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27996 (or 27985 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 33840070 is about 5817.2218455204. The cubic root of 33840070 is about 323.4524295270.

The spelling of 33840070 in words is "thirty-three million, eight hundred forty thousand, seventy".