409092481 has 4 divisors (see below), whose sum is σ = 467534272. Its totient is φ = 350650692.

The previous prime is 409092479. The next prime is 409092487. The reversal of 409092481 is 184290904.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 409092481 - 2¹ = 409092479 is a prime.

It is a super-2 number, since 2×409092481² = 334713316021470722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 409092481.

It is not an unprimeable number, because it can be changed into a prime (409092487) 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, 29220885 + ... + 29220898.

It is an arithmetic number, because the mean of its divisors is an integer number (116883568).

Almost surely, 2^409092481 is an apocalyptic number.

It is an amenable number.

409092481 is a deficient number, since it is larger than the sum of its proper divisors (58441791).

409092481 is an equidigital number, since it uses as much as digits as its factorization.

409092481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58441790.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 409092481 is about 20226.0347324927. The cubic root of 409092481 is about 742.3473555470.

The spelling of 409092481 in words is "four hundred nine million, ninety-two thousand, four hundred eighty-one".