4209261 has 16 divisors (see below), whose sum is σ = 6449664. Its totient is φ = 2391984.

The previous prime is 4209259. The next prime is 4209269. The reversal of 4209261 is 1629024.

It is not a de Polignac number, because 4209261 - 2¹ = 4209259 is a prime.

It is a super-2 number, since 2×4209261² = 35435756332242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4209269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4326 + ... + 5208.

It is an arithmetic number, because the mean of its divisors is an integer number (403104).

Almost surely, 2^4209261 is an apocalyptic number.

It is an amenable number.

4209261 is a deficient number, since it is larger than the sum of its proper divisors (2240403).

4209261 is a wasteful number, since it uses less digits than its factorization.

4209261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120.

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

The square root of 4209261 is about 2051.6483616838. The cubic root of 4209261 is about 161.4613645531.

The spelling of 4209261 in words is "four million, two hundred nine thousand, two hundred sixty-one".