2209390 has 8 divisors (see below), whose sum is σ = 3976920. Its totient is φ = 883752.

The previous prime is 2209343. The next prime is 2209409. The reversal of 2209390 is 939022.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110460 + ... + 110479.

It is an arithmetic number, because the mean of its divisors is an integer number (497115).

2^2209390 is an apocalyptic number.

2209390 is a deficient number, since it is larger than the sum of its proper divisors (1767530).

2209390 is a wasteful number, since it uses less digits than its factorization.

2209390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220946.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 2209390 is about 1486.4016953704. The cubic root of 2209390 is about 130.2439207402.

The spelling of 2209390 in words is "two million, two hundred nine thousand, three hundred ninety".