404040489 has 8 divisors (see below), whose sum is σ = 539593440. Its totient is φ = 268923936.

The previous prime is 404040487. The next prime is 404040493. The reversal of 404040489 is 984040404.

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

It is not a de Polignac number, because 404040489 - 2¹ = 404040487 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (404040487) 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, 106932 + ... + 110645.

It is an arithmetic number, because the mean of its divisors is an integer number (67449180).

Almost surely, 2^404040489 is an apocalyptic number.

It is an amenable number.

404040489 is a deficient number, since it is larger than the sum of its proper divisors (135552951).

404040489 is a wasteful number, since it uses less digits than its factorization.

404040489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218199.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 404040489 is about 20100.7584185274. The cubic root of 404040489 is about 739.2788744375.

The spelling of 404040489 in words is "four hundred four million, forty thousand, four hundred eighty-nine".