400412104 has 8 divisors (see below), whose sum is σ = 750772710. Its totient is φ = 200206048.

The previous prime is 400412069. The next prime is 400412119. The reversal of 400412104 is 401214004.

It can be written as a sum of positive squares in only one way, i.e., 374422500 + 25989604 = 19350^2 + 5098^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25025749 + ... + 25025764.

Almost surely, 2^400412104 is an apocalyptic number.

It is an amenable number.

400412104 is a deficient number, since it is larger than the sum of its proper divisors (350360606).

400412104 is a wasteful number, since it uses less digits than its factorization.

400412104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50051519 (or 50051515 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 400412104 is about 20010.2999477769. The cubic root of 400412104 is about 737.0592469003.

Adding to 400412104 its reverse (401214004), we get a palindrome (801626108).

The spelling of 400412104 in words is "four hundred million, four hundred twelve thousand, one hundred four".