33940849 has 4 divisors (see below), whose sum is σ = 34370560. Its totient is φ = 33511140.

The previous prime is 33940807. The next prime is 33940867. The reversal of 33940849 is 94804933.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94804933 = 67 ⋅1414999.

It is a cyclic number.

It is not a de Polignac number, because 33940849 - 2⁹ = 33940337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33940549) 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, 214737 + ... + 214894.

It is an arithmetic number, because the mean of its divisors is an integer number (8592640).

Almost surely, 2^33940849 is an apocalyptic number.

It is an amenable number.

33940849 is a deficient number, since it is larger than the sum of its proper divisors (429711).

33940849 is an equidigital number, since it uses as much as digits as its factorization.

33940849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429710.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 33940849 is about 5825.8775304670. The cubic root of 33940849 is about 323.7732021753.

The spelling of 33940849 in words is "thirty-three million, nine hundred forty thousand, eight hundred forty-nine".