31342440304 has 40 divisors (see below), whose sum is σ = 70877749248. Its totient is φ = 13146674880.

The previous prime is 31342440293. The next prime is 31342440313. The reversal of 31342440304 is 40304424313.

It is a super-2 number, since 2×31342440304² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 2971792 + ... + 2982319.

Almost surely, 2^31342440304 is an apocalyptic number.

It is an amenable number.

31342440304 is an abundant number, since it is smaller than the sum of its proper divisors (39535308944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31342440304 is a wasteful number, since it uses less digits than its factorization.

31342440304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5954173 (or 5954167 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 31342440304 its reverse (40304424313), we get a palindrome (71646864617).

The spelling of 31342440304 in words is "thirty-one billion, three hundred forty-two million, four hundred forty thousand, three hundred four".