33425340 has 48 divisors (see below), whose sum is σ = 100792608. Its totient is φ = 8227584.

The previous prime is 33425339. The next prime is 33425363. The reversal of 33425340 is 4352433.

It is a super-2 number, since 2×33425340² = 2234506708231200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33425340.

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, 20647 + ... + 22206.

It is an arithmetic number, because the mean of its divisors is an integer number (2099846).

Almost surely, 2^33425340 is an apocalyptic number.

33425340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33425340 is an abundant number, since it is smaller than the sum of its proper divisors (67367268).

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

33425340 is a wasteful number, since it uses less digits than its factorization.

33425340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42878 (or 42876 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 33425340 is about 5781.4652122105. The cubic root of 33425340 is about 322.1256277159.

Adding to 33425340 its reverse (4352433), we get a palindrome (37777773).

The spelling of 33425340 in words is "thirty-three million, four hundred twenty-five thousand, three hundred forty".