2168741 has 8 divisors (see below), whose sum is σ = 2311704. Its totient is φ = 2027520.

The previous prime is 2168737. The next prime is 2168743. The reversal of 2168741 is 1478612.

It can be written as a sum of positive squares in 4 ways, for example, as 616225 + 1552516 = 785^2 + 1246^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2168741 - 2² = 2168737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2168743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2951 + ... + 3611.

It is an arithmetic number, because the mean of its divisors is an integer number (288963).

2^2168741 is an apocalyptic number.

It is an amenable number.

2168741 is a deficient number, since it is larger than the sum of its proper divisors (142963).

2168741 is a wasteful number, since it uses less digits than its factorization.

2168741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871.

The product of its digits is 2688, while the sum is 29.

The square root of 2168741 is about 1472.6645918199. The cubic root of 2168741 is about 129.4402162893.

The spelling of 2168741 in words is "two million, one hundred sixty-eight thousand, seven hundred forty-one".