404029441 has 4 divisors (see below), whose sum is σ = 411652692. Its totient is φ = 396406192.

The previous prime is 404029427. The next prime is 404029487. The reversal of 404029441 is 144920404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 335073025 + 68956416 = 18305^2 + 8304^2 .

It is a cyclic number.

It is not a de Polignac number, because 404029441 - 2¹⁹ = 403505153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404029841) 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, 3811546 + ... + 3811651.

It is an arithmetic number, because the mean of its divisors is an integer number (102913173).

It is a Proth number, since it is equal to 6165 ⋅ 2¹⁶ + 1 and 6165 < 2¹⁶.

Almost surely, 2^404029441 is an apocalyptic number.

It is an amenable number.

404029441 is a deficient number, since it is larger than the sum of its proper divisors (7623251).

404029441 is an equidigital number, since it uses as much as digits as its factorization.

404029441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7623250.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 404029441 is about 20100.4836011475. The cubic root of 404029441 is about 739.2721361463.

Adding to 404029441 its reverse (144920404), we get a palindrome (548949845).

The spelling of 404029441 in words is "four hundred four million, twenty-nine thousand, four hundred forty-one".