404000884 has 36 divisors (see below), whose sum is σ = 826113540. Its totient is φ = 172368000.

The previous prime is 404000881. The next prime is 404000887. The reversal of 404000884 is 488000404.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (404000881) and next prime (404000887).

It can be written as a sum of positive squares in 2 ways, for example, as 236298384 + 167702500 = 15372^2 + 12950^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404000881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40384 + ... + 49384.

Almost surely, 2^404000884 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404000884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (413056770).

404000884 is an abundant number, since it is smaller than the sum of its proper divisors (422112656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404000884 is a wasteful number, since it uses less digits than its factorization.

404000884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9248 (or 9239 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 404000884 is about 20099.7732325517. The cubic root of 404000884 is about 739.2547183630.

The spelling of 404000884 in words is "four hundred four million, eight hundred eighty-four", and thus it is an aban number.