400006674344 has 8 divisors (see below), whose sum is σ = 750012514410. Its totient is φ = 200003337168.

The previous prime is 400006674323. The next prime is 400006674383. The reversal of 400006674344 is 443476600004.

It can be written as a sum of positive squares in only one way, i.e., 206626611844 + 193380062500 = 454562^2 + 439750^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 400006674298 and 400006674307.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25000417139 + ... + 25000417154.

Almost surely, 2^400006674344 is an apocalyptic number.

It is an amenable number.

400006674344 is a deficient number, since it is larger than the sum of its proper divisors (350005840066).

400006674344 is a wasteful number, since it uses less digits than its factorization.

400006674344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50000834299 (or 50000834295 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 38.

The spelling of 400006674344 in words is "four hundred billion, six million, six hundred seventy-four thousand, three hundred forty-four".