33140144 has 10 divisors (see below), whose sum is σ = 64209060. Its totient is φ = 16570064.

The previous prime is 33140117. The next prime is 33140153. The reversal of 33140144 is 44104133.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1035614 + ... + 1035645.

It is an arithmetic number, because the mean of its divisors is an integer number (6420906).

Almost surely, 2^33140144 is an apocalyptic number.

It is an amenable number.

33140144 is a deficient number, since it is larger than the sum of its proper divisors (31068916).

33140144 is a wasteful number, since it uses less digits than its factorization.

33140144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071267 (or 2071261 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 33140144 is about 5756.7476929252. The cubic root of 33140144 is about 321.2068490139.

Adding to 33140144 its reverse (44104133), we get a palindrome (77244277).

The spelling of 33140144 in words is "thirty-three million, one hundred forty thousand, one hundred forty-four".