33242140 has 24 divisors (see below), whose sum is σ = 73915632. Its totient is φ = 12514560.

The previous prime is 33242119. The next prime is 33242147. The reversal of 33242140 is 4124233.

It is a super-2 number, since 2×33242140² = 2210079743559200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33242147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48546 + ... + 49225.

It is an arithmetic number, because the mean of its divisors is an integer number (3079818).

Almost surely, 2^33242140 is an apocalyptic number.

It is an amenable number.

33242140 is an abundant number, since it is smaller than the sum of its proper divisors (40673492).

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

33242140 is a wasteful number, since it uses less digits than its factorization.

33242140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97797 (or 97795 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 33242140 is about 5765.5997086166. The cubic root of 33242140 is about 321.5360395025.

Adding to 33242140 its reverse (4124233), we get a palindrome (37366373).

The spelling of 33242140 in words is "thirty-three million, two hundred forty-two thousand, one hundred forty".