33440242 has 8 divisors (see below), whose sum is σ = 54720432. Its totient is φ = 15200100.

The previous prime is 33440233. The next prime is 33440263. The reversal of 33440242 is 24204433.

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

It is a super-2 number, since 2×33440242² = 2236499570037128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 1520011 = 33440242 / (3 + 3 + 4 + 4 + 0 + 2 + 4 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 759984 + ... + 760027.

It is an arithmetic number, because the mean of its divisors is an integer number (6840054).

Almost surely, 2^33440242 is an apocalyptic number.

33440242 is a deficient number, since it is larger than the sum of its proper divisors (21280190).

33440242 is a wasteful number, since it uses less digits than its factorization.

33440242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520024.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 33440242 is about 5782.7538422451. The cubic root of 33440242 is about 322.1734916310.

Adding to 33440242 its reverse (24204433), we get a palindrome (57644675).

The spelling of 33440242 in words is "thirty-three million, four hundred forty thousand, two hundred forty-two".