2198264 has 8 divisors (see below), whose sum is σ = 4121760. Its totient is φ = 1099128.

The previous prime is 2198227. The next prime is 2198269. The reversal of 2198264 is 4628912.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2198264² = 9664729227392, which contains 22 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2198264.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137384 + ... + 137399.

It is an arithmetic number, because the mean of its divisors is an integer number (515220).

2^2198264 is an apocalyptic number.

It is an amenable number.

2198264 is a deficient number, since it is larger than the sum of its proper divisors (1923496).

2198264 is a wasteful number, since it uses less digits than its factorization.

2198264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274789 (or 274785 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 2198264 is about 1482.6543764479. The cubic root of 2198264 is about 130.0249261868.

The spelling of 2198264 in words is "two million, one hundred ninety-eight thousand, two hundred sixty-four".