404479481 has 4 divisors (see below), whose sum is σ = 462262272. Its totient is φ = 346696692.

The previous prime is 404479459. The next prime is 404479519. The reversal of 404479481 is 184974404.

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 a cyclic number.

It is not a de Polignac number, because 404479481 - 2¹⁴ = 404463097 is a prime.

It is a super-2 number, since 2×404479481² = 327207301100058722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (404479421) 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, 28891385 + ... + 28891398.

It is an arithmetic number, because the mean of its divisors is an integer number (115565568).

Almost surely, 2^404479481 is an apocalyptic number.

It is an amenable number.

404479481 is a deficient number, since it is larger than the sum of its proper divisors (57782791).

404479481 is an equidigital number, since it uses as much as digits as its factorization.

404479481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57782790.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 404479481 is about 20111.6752410136. The cubic root of 404479481 is about 739.5465209187.

The spelling of 404479481 in words is "four hundred four million, four hundred seventy-nine thousand, four hundred eighty-one".