541826809 has 8 divisors (see below), whose sum is σ = 544355168. Its totient is φ = 539304480.

The previous prime is 541826797. The next prime is 541826837. The reversal of 541826809 is 908628145.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-541826809 is a prime.

It is a super-2 number, since 2×541826809² = 587152581902244962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (541826869) 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, 309274 + ... + 311020.

It is an arithmetic number, because the mean of its divisors is an integer number (68044396).

Almost surely, 2^541826809 is an apocalyptic number.

It is an amenable number.

541826809 is a deficient number, since it is larger than the sum of its proper divisors (2528359).

541826809 is a wasteful number, since it uses less digits than its factorization.

541826809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3015.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 541826809 is about 23277.1735612381. The cubic root of 541826809 is about 815.2425333609.

The spelling of 541826809 in words is "five hundred forty-one million, eight hundred twenty-six thousand, eight hundred nine".