2198925 has 36 divisors (see below), whose sum is σ = 4086420. Its totient is φ = 1128960.

The previous prime is 2198909. The next prime is 2198981. The reversal of 2198925 is 5298912.

It can be written as a sum of positive squares in 6 ways, for example, as 133956 + 2064969 = 366^2 + 1437^2 .

It is not a de Polignac number, because 2198925 - 2⁴ = 2198909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2198925.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6357 + ... + 6693.

2^2198925 is an apocalyptic number.

2198925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2198925 is a deficient number, since it is larger than the sum of its proper divisors (1887495).

2198925 is a wasteful number, since it uses less digits than its factorization.

2198925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 374 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 2198925 is about 1482.8772707139. The cubic root of 2198925 is about 130.0379573580.

The spelling of 2198925 in words is "two million, one hundred ninety-eight thousand, nine hundred twenty-five".