33225730 has 16 divisors (see below), whose sum is σ = 60528384. Its totient is φ = 13129840.

The previous prime is 33225727. The next prime is 33225749. The reversal of 33225730 is 3752233.

It is a happy number.

It is a super-3 number, since 3×33225730³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 33225695 and 33225704.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19186 + ... + 20845.

It is an arithmetic number, because the mean of its divisors is an integer number (3783024).

Almost surely, 2^33225730 is an apocalyptic number.

33225730 is a deficient number, since it is larger than the sum of its proper divisors (27302654).

33225730 is a wasteful number, since it uses less digits than its factorization.

33225730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40121.

The product of its (nonzero) digits is 3780, while the sum is 25.

The square root of 33225730 is about 5764.1764372719. The cubic root of 33225730 is about 321.4831219820.

Adding to 33225730 its reverse (3752233), we get a palindrome (36977963).

It can be divided in two parts, 332 and 25730, that added together give a palindrome (26062).

The spelling of 33225730 in words is "thirty-three million, two hundred twenty-five thousand, seven hundred thirty".