33285140 has 48 divisors (see below), whose sum is σ = 83365632. Its totient is φ = 10914816.

The previous prime is 33285137. The next prime is 33285157. The reversal of 33285140 is 4158233.

It is a super-2 number, since 2×33285140² = 2215801089639200, 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 15 ways as a sum of consecutive naturals, for example, 1949 + ... + 8388.

It is an arithmetic number, because the mean of its divisors is an integer number (1736784).

Almost surely, 2^33285140 is an apocalyptic number.

It is an amenable number.

33285140 is an abundant number, since it is smaller than the sum of its proper divisors (50080492).

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

33285140 is a wasteful number, since it uses less digits than its factorization.

33285140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10376 (or 10374 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 33285140 is about 5769.3275171375. The cubic root of 33285140 is about 321.6746195545.

The spelling of 33285140 in words is "thirty-three million, two hundred eighty-five thousand, one hundred forty".