2198290 has 8 divisors (see below), whose sum is σ = 3956940. Its totient is φ = 879312.

The previous prime is 2198269. The next prime is 2198291. The reversal of 2198290 is 928912.

It can be written as a sum of positive squares in 2 ways, for example, as 2169729 + 28561 = 1473^2 + 169^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2198291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109905 + ... + 109924.

2^2198290 is an apocalyptic number.

2198290 is a deficient number, since it is larger than the sum of its proper divisors (1758650).

2198290 is a wasteful number, since it uses less digits than its factorization.

2198290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219836.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 2198290 is about 1482.6631444802. The cubic root of 2198290 is about 130.0254388087.

The spelling of 2198290 in words is "two million, one hundred ninety-eight thousand, two hundred ninety".