2229945 has 8 divisors (see below), whose sum is σ = 3567936. Its totient is φ = 1189296.

The previous prime is 2229943. The next prime is 2229959. The reversal of 2229945 is 5499222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2229945 - 2¹ = 2229943 is a prime.

It is a d-powerful number, because it can be written as 2 + 2¹⁷ + 2²¹ + 9³ + 9³ + 4⁴ + 5 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2229943) 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, 74317 + ... + 74346.

It is an arithmetic number, because the mean of its divisors is an integer number (445992).

2^2229945 is an apocalyptic number.

It is an amenable number.

2229945 is a deficient number, since it is larger than the sum of its proper divisors (1337991).

2229945 is a wasteful number, since it uses less digits than its factorization.

2229945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148671.

The product of its digits is 12960, while the sum is 33.

The square root of 2229945 is about 1493.3000368312. The cubic root of 2229945 is about 130.6465815246.

The spelling of 2229945 in words is "two million, two hundred twenty-nine thousand, nine hundred forty-five".