2250921 has 8 divisors (see below), whose sum is σ = 3071200. Its totient is φ = 1465632.

The previous prime is 2250917. The next prime is 2250923. The reversal of 2250921 is 1290522.

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

It is not a de Polignac number, because 2250921 - 2² = 2250917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2250923) 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, 8596 + ... + 8853.

It is an arithmetic number, because the mean of its divisors is an integer number (383900).

2^2250921 is an apocalyptic number.

It is an amenable number.

2250921 is a deficient number, since it is larger than the sum of its proper divisors (820279).

2250921 is a wasteful number, since it uses less digits than its factorization.

2250921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17495.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 2250921 is about 1500.3069685901. The cubic root of 2250921 is about 131.0549465516.

The spelling of 2250921 in words is "two million, two hundred fifty thousand, nine hundred twenty-one".