33940457 has 4 divisors (see below), whose sum is σ = 34270080. Its totient is φ = 33610836.

The previous prime is 33940451. The next prime is 33940463. The reversal of 33940457 is 75404933.

33940457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 75404933 = 107 ⋅704719.

It is an interprime number because it is at equal distance from previous prime (33940451) and next prime (33940463).

It is a cyclic number.

It is not a de Polignac number, because 33940457 - 2⁶ = 33940393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33940451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164657 + ... + 164862.

It is an arithmetic number, because the mean of its divisors is an integer number (8567520).

Almost surely, 2^33940457 is an apocalyptic number.

It is an amenable number.

33940457 is a deficient number, since it is larger than the sum of its proper divisors (329623).

33940457 is a wasteful number, since it uses less digits than its factorization.

33940457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329622.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 33940457 is about 5825.8438873695. The cubic root of 33940457 is about 323.7719556971.

The spelling of 33940457 in words is "thirty-three million, nine hundred forty thousand, four hundred fifty-seven".