33227740 has 48 divisors (see below), whose sum is σ = 85885632. Its totient is φ = 10515456.

The previous prime is 33227729. The next prime is 33227743. The reversal of 33227740 is 4772233.

It is a super-2 number, since 2×33227740² = 2208165411015200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 33227699 and 33227708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33227743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7309 + ... + 10948.

It is an arithmetic number, because the mean of its divisors is an integer number (1789284).

Almost surely, 2^33227740 is an apocalyptic number.

It is an amenable number.

33227740 is an abundant number, since it is smaller than the sum of its proper divisors (52657892).

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

33227740 is a wasteful number, since it uses less digits than its factorization.

33227740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18286 (or 18284 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 33227740 is about 5764.3507873827. The cubic root of 33227740 is about 321.4896045890.

Adding to 33227740 its reverse (4772233), we get a palindrome (37999973).

The spelling of 33227740 in words is "thirty-three million, two hundred twenty-seven thousand, seven hundred forty".