2641209 has 8 divisors (see below), whose sum is σ = 3707040. Its totient is φ = 1668096.

The previous prime is 2641193. The next prime is 2641217. The reversal of 2641209 is 9021462.

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

It is not a de Polignac number, because 2641209 - 2⁴ = 2641193 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2641279) 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, 23112 + ... + 23225.

It is an arithmetic number, because the mean of its divisors is an integer number (463380).

2^2641209 is an apocalyptic number.

It is an amenable number.

2641209 is a deficient number, since it is larger than the sum of its proper divisors (1065831).

2641209 is a wasteful number, since it uses less digits than its factorization.

2641209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46359.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 2641209 is about 1625.1796823736. The cubic root of 2641209 is about 138.2295591120.

It can be divided in two parts, 2641 and 209, that added together give a triangular number (2850 = T₇₅).

The spelling of 2641209 in words is "two million, six hundred forty-one thousand, two hundred nine".