2198624 has 24 divisors (see below), whose sum is σ = 4370688. Its totient is φ = 1088640.

The previous prime is 2198617. The next prime is 2198653. The reversal of 2198624 is 4268912.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3794 + ... + 4334.

It is an arithmetic number, because the mean of its divisors is an integer number (182112).

2^2198624 is an apocalyptic number.

It is an amenable number.

2198624 is a deficient number, since it is larger than the sum of its proper divisors (2172064).

2198624 is a wasteful number, since it uses less digits than its factorization.

2198624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678 (or 670 counting only the distinct ones).

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

The square root of 2198624 is about 1482.7757753619. The cubic root of 2198624 is about 130.0320236690.

The spelling of 2198624 in words is "two million, one hundred ninety-eight thousand, six hundred twenty-four".