2197356 has 72 divisors (see below), whose sum is σ = 6186096. Its totient is φ = 604800.

The previous prime is 2197333. The next prime is 2197357. The reversal of 2197356 is 6537912.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21706 + ... + 21806.

It is an arithmetic number, because the mean of its divisors is an integer number (85918).

2^2197356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2197356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3093048).

2197356 is an abundant number, since it is smaller than the sum of its proper divisors (3988740).

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

2197356 is a wasteful number, since it uses less digits than its factorization.

2197356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 150 counting only the distinct ones).

The product of its digits is 11340, while the sum is 33.

The square root of 2197356 is about 1482.3481372471. The cubic root of 2197356 is about 130.0070213170.

The spelling of 2197356 in words is "two million, one hundred ninety-seven thousand, three hundred fifty-six".