2198455 has 16 divisors (see below), whose sum is σ = 3147264. Its totient is φ = 1441440.

The previous prime is 2198453. The next prime is 2198473. The reversal of 2198455 is 5548912.

It is not a de Polignac number, because 2198455 - 2¹ = 2198453 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2198455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 561 + ... + 2170.

It is an arithmetic number, because the mean of its divisors is an integer number (196704).

2^2198455 is an apocalyptic number.

2198455 is a deficient number, since it is larger than the sum of its proper divisors (948809).

2198455 is a wasteful number, since it uses less digits than its factorization.

2198455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2766.

The product of its digits is 14400, while the sum is 34.

The square root of 2198455 is about 1482.7187865539. The cubic root of 2198455 is about 130.0286918919.

The spelling of 2198455 in words is "two million, one hundred ninety-eight thousand, four hundred fifty-five".