33870245 has 8 divisors (see below), whose sum is σ = 40823160. Its totient is φ = 26976960.

The previous prime is 33870241. The next prime is 33870247. The reversal of 33870245 is 54207833.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14386849 + 19483396 = 3793^2 + 4414^2 .

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

It is not a de Polignac number, because 33870245 - 2² = 33870241 is a prime.

It is a super-2 number, since 2×33870245² = 2294386992720050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33870241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13646 + ... + 15935.

It is an arithmetic number, because the mean of its divisors is an integer number (5102895).

Almost surely, 2^33870245 is an apocalyptic number.

It is an amenable number.

33870245 is a deficient number, since it is larger than the sum of its proper divisors (6952915).

33870245 is a wasteful number, since it uses less digits than its factorization.

33870245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29815.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 33870245 is about 5819.8148595982. The cubic root of 33870245 is about 323.5485412024.

The spelling of 33870245 in words is "thirty-three million, eight hundred seventy thousand, two hundred forty-five".