33222945 has 32 divisors (see below), whose sum is σ = 60979968. Its totient is φ = 15130368.

The previous prime is 33222941. The next prime is 33222983. The reversal of 33222945 is 54922233.

It is not a de Polignac number, because 33222945 - 2² = 33222941 is a prime.

It is a super-2 number, since 2×33222945² = 2207528148946050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33222941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41287 + ... + 42083.

It is an arithmetic number, because the mean of its divisors is an integer number (1905624).

Almost surely, 2^33222945 is an apocalyptic number.

33222945 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

33222945 is a deficient number, since it is larger than the sum of its proper divisors (27757023).

33222945 is a wasteful number, since it uses less digits than its factorization.

With its successor (33222946) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (1209).

33222945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209.

The product of its digits is 12960, while the sum is 30.

The square root of 33222945 is about 5763.9348538997. The cubic root of 33222945 is about 321.4741394303.

The spelling of 33222945 in words is "thirty-three million, two hundred twenty-two thousand, nine hundred forty-five".