2197044 has 30 divisors (see below), whose sum is σ = 5744354. Its totient is φ = 732240.

The previous prime is 2197043. The next prime is 2197049. The reversal of 2197044 is 4407912.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1822500 + 374544 = 1350^2 + 612^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2196999 and 2197017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197043) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3067 + ... + 3714.

2^2197044 is an apocalyptic number.

It is an amenable number.

2197044 is an abundant number, since it is smaller than the sum of its proper divisors (3547310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2197044 is a wasteful number, since it uses less digits than its factorization.

2197044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6797 (or 6786 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 2197044 is about 1482.2428950749. The cubic root of 2197044 is about 130.0008678443. Note that the first 3 decimals are identical.

The spelling of 2197044 in words is "two million, one hundred ninety-seven thousand, forty-four".