31404002441 has 12 divisors (see below), whose sum is σ = 36534453012. Its totient is φ = 26915309568.

The previous prime is 31404002431. The next prime is 31404002467. The reversal of 31404002441 is 14420040413.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2536633225 + 28867369216 = 50365^2 + 169904^2 .

It is a de Polignac number, because none of the positive numbers 2^k-31404002441 is a prime.

It is a super-2 number, since 2×31404002441² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31404002411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 725381 + ... + 767453.

It is an arithmetic number, because the mean of its divisors is an integer number (3044537751).

Almost surely, 2^31404002441 is an apocalyptic number.

It is an amenable number.

31404002441 is a deficient number, since it is larger than the sum of its proper divisors (5130450571).

31404002441 is a wasteful number, since it uses less digits than its factorization.

31404002441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57320 (or 57313 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 31404002441 its reverse (14420040413), we get a palindrome (45824042854).

The spelling of 31404002441 in words is "thirty-one billion, four hundred four million, two thousand, four hundred forty-one".