31404420004 has 12 divisors (see below), whose sum is σ = 54962737228. Its totient is φ = 15700780800.

The previous prime is 31404420001. The next prime is 31404420049. The reversal of 31404420004 is 40002440413.

It can be written as a sum of positive squares in 2 ways, for example, as 3825175104 + 27579244900 = 61848^2 + 166070^2 .

It is not an unprimeable number, because it can be changed into a prime (31404420001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307077 + ... + 396364.

Almost surely, 2^31404420004 is an apocalyptic number.

It is an amenable number.

31404420004 is a deficient number, since it is larger than the sum of its proper divisors (23558317224).

31404420004 is a wasteful number, since it uses less digits than its factorization.

31404420004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714606 (or 714604 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 31404420004 its reverse (40002440413), we get a palindrome (71406860417).

The spelling of 31404420004 in words is "thirty-one billion, four hundred four million, four hundred twenty thousand, four".