33140244 has 48 divisors (see below), whose sum is σ = 79422336. Its totient is φ = 10752000.

The previous prime is 33140231. The next prime is 33140257. The reversal of 33140244 is 44204133.

It is an interprime number because it is at equal distance from previous prime (33140231) and next prime (33140257).

It is a self number, because there is not a number n which added to its sum of digits gives 33140244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82444 + ... + 82844.

It is an arithmetic number, because the mean of its divisors is an integer number (1654632).

Almost surely, 2^33140244 is an apocalyptic number.

It is an amenable number.

33140244 is an abundant number, since it is smaller than the sum of its proper divisors (46282092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33140244 is a wasteful number, since it uses less digits than its factorization.

33140244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 33140244 is about 5756.7563783784. The cubic root of 33140244 is about 321.2071720929.

Adding to 33140244 its reverse (44204133), we get a palindrome (77344377).

The spelling of 33140244 in words is "thirty-three million, one hundred forty thousand, two hundred forty-four".