404422040644 has 6 divisors (see below), whose sum is σ = 707738571134. Its totient is φ = 202211020320.

The previous prime is 404422040641. The next prime is 404422040647. The reversal of 404422040644 is 446040224404.

It is an interprime number because it is at equal distance from previous prime (404422040641) and next prime (404422040647).

It can be written as a sum of positive squares in only one way, i.e., 261031071744 + 143390968900 = 510912^2 + 378670^2 .

It is not an unprimeable number, because it can be changed into a prime (404422040641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50552755077 + ... + 50552755084.

Almost surely, 2^404422040644 is an apocalyptic number.

It is an amenable number.

404422040644 is a deficient number, since it is larger than the sum of its proper divisors (303316530490).

404422040644 is a wasteful number, since it uses less digits than its factorization.

404422040644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101105510165 (or 101105510163 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 34.

The spelling of 404422040644 in words is "four hundred four billion, four hundred twenty-two million, forty thousand, six hundred forty-four".