33135390 has 24 divisors (see below), whose sum is σ = 86152248. Its totient is φ = 8836080.

The previous prime is 33135367. The next prime is 33135407. The reversal of 33135390 is 9353133.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183996 + ... + 184175.

It is an arithmetic number, because the mean of its divisors is an integer number (3589677).

Almost surely, 2^33135390 is an apocalyptic number.

33135390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

33135390 is an abundant number, since it is smaller than the sum of its proper divisors (53016858).

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

33135390 is a wasteful number, since it uses less digits than its factorization.

33135390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368184 (or 368181 counting only the distinct ones).

The product of its (nonzero) digits is 3645, while the sum is 27.

The square root of 33135390 is about 5756.3347713628. The cubic root of 33135390 is about 321.1914890889.

It can be divided in two parts, 331 and 35390, that added together give a square (35721 = 189²).

The spelling of 33135390 in words is "thirty-three million, one hundred thirty-five thousand, three hundred ninety".