33042249 has 20 divisors (see below), whose sum is σ = 50955520. Its totient is φ = 21315960.

The previous prime is 33042241. The next prime is 33042257. The reversal of 33042249 is 94224033.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (33042241) and next prime (33042257).

It is not a de Polignac number, because 33042249 - 2³ = 33042241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33042241) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4069 + ... + 9090.

It is an arithmetic number, because the mean of its divisors is an integer number (2547776).

Almost surely, 2^33042249 is an apocalyptic number.

It is an amenable number.

33042249 is a deficient number, since it is larger than the sum of its proper divisors (17913271).

33042249 is a wasteful number, since it uses less digits than its factorization.

33042249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13202 (or 13193 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 33042249 is about 5748.2387737463. The cubic root of 33042249 is about 320.8902585823.

The spelling of 33042249 in words is "thirty-three million, forty-two thousand, two hundred forty-nine".