2197844001 has 6 divisors (see below), whose sum is σ = 3174663570. Its totient is φ = 1465229328.

The previous prime is 2197843957. The next prime is 2197844017. The reversal of 2197844001 is 1004487912.

It can be written as a sum of positive squares in only one way, i.e., 2014214400 + 183629601 = 44880^2 + 13551^2 .

It is not a de Polignac number, because 2197844001 - 2⁶ = 2197843937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2197844041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122102436 + ... + 122102453.

It is an arithmetic number, because the mean of its divisors is an integer number (529110595).

Almost surely, 2^2197844001 is an apocalyptic number.

It is an amenable number.

2197844001 is a deficient number, since it is larger than the sum of its proper divisors (976819569).

2197844001 is a wasteful number, since it uses less digits than its factorization.

2197844001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244204895 (or 244204892 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 2197844001 is about 46881.1689380715. The cubic root of 2197844001 is about 1300.1664483128.

The spelling of 2197844001 in words is "two billion, one hundred ninety-seven million, eight hundred forty-four thousand, one".