2197734 has 64 divisors (see below), whose sum is σ = 5640192. Its totient is φ = 554400.

The previous prime is 2197733. The next prime is 2197739. The reversal of 2197734 is 4377912.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 2197695 and 2197704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197733) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30919 + ... + 30989.

It is an arithmetic number, because the mean of its divisors is an integer number (88128).

2^2197734 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2197734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2820096).

2197734 is an abundant number, since it is smaller than the sum of its proper divisors (3442458).

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

2197734 is a wasteful number, since it uses less digits than its factorization.

2197734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161.

The product of its digits is 10584, while the sum is 33.

The square root of 2197734 is about 1482.4756321775. The cubic root of 2197734 is about 130.0144757056.

The spelling of 2197734 in words is "two million, one hundred ninety-seven thousand, seven hundred thirty-four".