416261 has 4 divisors (see below), whose sum is σ = 418572. Its totient is φ = 413952.

The previous prime is 416257. The next prime is 416263. The reversal of 416261 is 162614.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 162614 = 2 ⋅81307.

It can be written as a sum of positive squares in 2 ways, for example, as 184900 + 231361 = 430^2 + 481^2 .

It is a cyclic number.

It is not a de Polignac number, because 416261 - 2² = 416257 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (416263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 860 + ... + 1253.

It is an arithmetic number, because the mean of its divisors is an integer number (104643).

2⁴¹⁶²⁶¹ is an apocalyptic number.

It is an amenable number.

416261 is a deficient number, since it is larger than the sum of its proper divisors (2311).

416261 is a wasteful number, since it uses less digits than its factorization.

416261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2310.

The product of its digits is 288, while the sum is 20.

The square root of 416261 is about 645.1829197987. The cubic root of 416261 is about 74.6658318182.

Adding to 416261 its reverse (162614), we get a palindrome (578875).

The spelling of 416261 in words is "four hundred sixteen thousand, two hundred sixty-one".