400377004444 has 6 divisors (see below), whose sum is σ = 700659757784. Its totient is φ = 200188502220.

The previous prime is 400377004421. The next prime is 400377004463. The reversal of 400377004444 is 444400773004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50047125552 + ... + 50047125559.

Almost surely, 2^400377004444 is an apocalyptic number.

It is an amenable number.

400377004444 is a deficient number, since it is larger than the sum of its proper divisors (300282753340).

400377004444 is a wasteful number, since it uses less digits than its factorization.

400377004444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100094251115 (or 100094251113 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 37.

Adding to 400377004444 its reverse (444400773004), we get a palindrome (844777777448).

The spelling of 400377004444 in words is "four hundred billion, three hundred seventy-seven million, four thousand, four hundred forty-four".