2205454 has 4 divisors (see below), whose sum is σ = 3308184. Its totient is φ = 1102726.

The previous prime is 2205451. The next prime is 2205481. The reversal of 2205454 is 4545022.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2205454² = 9728054692232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551362 + ... + 551365.

It is an arithmetic number, because the mean of its divisors is an integer number (827046).

2^2205454 is an apocalyptic number.

2205454 is a deficient number, since it is larger than the sum of its proper divisors (1102730).

2205454 is a wasteful number, since it uses less digits than its factorization.

2205454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102729.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 2205454 is about 1485.0771023755. The cubic root of 2205454 is about 130.1665321406.

The spelling of 2205454 in words is "two million, two hundred five thousand, four hundred fifty-four".