33220960 has 48 divisors (see below), whose sum is σ = 78832656. Its totient is φ = 13229568.

The previous prime is 33220939. The next prime is 33220969. The reversal of 33220960 is 6902233.

It is a super-2 number, since 2×33220960² = 2207264366643200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33220969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63259 + ... + 63781.

It is an arithmetic number, because the mean of its divisors is an integer number (1642347).

Almost surely, 2^33220960 is an apocalyptic number.

It is an amenable number.

33220960 is an abundant number, since it is smaller than the sum of its proper divisors (45611696).

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

33220960 is a wasteful number, since it uses less digits than its factorization.

33220960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935 (or 927 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 33220960 is about 5763.7626599297. The cubic root of 33220960 is about 321.4677368384.

The spelling of 33220960 in words is "thirty-three million, two hundred twenty thousand, nine hundred sixty".