33444142 has 8 divisors (see below), whose sum is σ = 52806600. Its totient is φ = 15841944.

The previous prime is 33444107. The next prime is 33444157. The reversal of 33444142 is 24144433.

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

It is a super-2 number, since 2×33444142² = 2237021268232328, which contains 22 as substring.

It is a congruent number.

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, 440017 + ... + 440092.

It is an arithmetic number, because the mean of its divisors is an integer number (6600825).

Almost surely, 2^33444142 is an apocalyptic number.

33444142 is a deficient number, since it is larger than the sum of its proper divisors (19362458).

33444142 is a wasteful number, since it uses less digits than its factorization.

33444142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880130.

The product of its digits is 4608, while the sum is 25.

The square root of 33444142 is about 5783.0910419948. The cubic root of 33444142 is about 322.1860157407.

Adding to 33444142 its reverse (24144433), we get a palindrome (57588575).

The spelling of 33444142 in words is "thirty-three million, four hundred forty-four thousand, one hundred forty-two".