1662241 has 8 divisors (see below), whose sum is σ = 1923264. Its totient is φ = 1407120.

The previous prime is 1662229. The next prime is 1662257. The reversal of 1662241 is 1422661.

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 1662241 - 2¹⁹ = 1137953 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1662211) 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, 850 + ... + 2011.

It is an arithmetic number, because the mean of its divisors is an integer number (240408).

2^1662241 is an apocalyptic number.

It is an amenable number.

1662241 is a deficient number, since it is larger than the sum of its proper divisors (261023).

1662241 is an equidigital number, since it uses as much as digits as its factorization.

1662241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951.

The product of its digits is 576, while the sum is 22.

The square root of 1662241 is about 1289.2792560186. The cubic root of 1662241 is about 118.4580729619.

The spelling of 1662241 in words is "one million, six hundred sixty-two thousand, two hundred forty-one".