2201972 has 12 divisors (see below), whose sum is σ = 3906756. Its totient is φ = 1085760.

The previous prime is 2201971. The next prime is 2201977. The reversal of 2201972 is 2791022.

It can be written as a sum of positive squares in 2 ways, for example, as 698896 + 1503076 = 836^2 + 1226^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3479 + ... + 4062.

It is an arithmetic number, because the mean of its divisors is an integer number (325563).

2^2201972 is an apocalyptic number.

It is an amenable number.

2201972 is a deficient number, since it is larger than the sum of its proper divisors (1704784).

2201972 is a wasteful number, since it uses less digits than its factorization.

2201972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7618 (or 7616 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 2201972 is about 1483.9043095833. The cubic root of 2201972 is about 130.0979931759.

Adding to 2201972 its reverse (2791022), we get a palindrome (4992994).

The spelling of 2201972 in words is "two million, two hundred one thousand, nine hundred seventy-two".