400884404 has 6 divisors (see below), whose sum is σ = 701547714. Its totient is φ = 200442200.

The previous prime is 400884403. The next prime is 400884437. The reversal of 400884404 is 404488004.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 259274404 + 141610000 = 16102^2 + 11900^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400884403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50110547 + ... + 50110554.

It is an arithmetic number, because the mean of its divisors is an integer number (116924619).

Almost surely, 2^400884404 is an apocalyptic number.

It is an amenable number.

400884404 is a deficient number, since it is larger than the sum of its proper divisors (300663310).

400884404 is a wasteful number, since it uses less digits than its factorization.

400884404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100221105 (or 100221103 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The square root of 400884404 is about 20022.0978920791. The cubic root of 400884404 is about 737.3489287039.

The spelling of 400884404 in words is "four hundred million, eight hundred eighty-four thousand, four hundred four".