2290447 has 6 divisors (see below), whose sum is σ = 2326128. Its totient is φ = 2255292.

The previous prime is 2290441. The next prime is 2290459. The reversal of 2290447 is 7440922.

It is not a de Polignac number, because 2290447 - 2¹¹ = 2288399 is a prime.

It is a super-2 number, since 2×2290447² = 10492294919618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2290441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6058 + ... + 6424.

It is an arithmetic number, because the mean of its divisors is an integer number (387688).

2^2290447 is an apocalyptic number.

2290447 is a deficient number, since it is larger than the sum of its proper divisors (35681).

2290447 is an frugal number, since it uses more digits than its factorization.

2290447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2290447 is about 1513.4222807928. The cubic root of 2290447 is about 131.8176046817.

The spelling of 2290447 in words is "two million, two hundred ninety thousand, four hundred forty-seven".