33857945 has 8 divisors (see below), whose sum is σ = 44323200. Its totient is φ = 24623920.

The previous prime is 33857939. The next prime is 33857953. The reversal of 33857945 is 54975833.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 33857945 - 2¹² = 33853849 is a prime.

It is a super-2 number, since 2×33857945² = 2292720879246050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33857896 and 33857905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307745 + ... + 307854.

It is an arithmetic number, because the mean of its divisors is an integer number (5540400).

Almost surely, 2^33857945 is an apocalyptic number.

It is an amenable number.

33857945 is a deficient number, since it is larger than the sum of its proper divisors (10465255).

33857945 is a wasteful number, since it uses less digits than its factorization.

33857945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615615.

The product of its digits is 453600, while the sum is 44.

The square root of 33857945 is about 5818.7580289955. The cubic root of 33857945 is about 323.5093708442.

The spelling of 33857945 in words is "thirty-three million, eight hundred fifty-seven thousand, nine hundred forty-five".