1340431400444 has 48 divisors (see below), whose sum is σ = 2486186680320. Its totient is φ = 630583934400.

The previous prime is 1340431400437. The next prime is 1340431400491. The reversal of 1340431400444 is 4440041340431.

It is a self number, because there is not a number n which added to its sum of digits gives 1340431400444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14562614 + ... + 14654370.

It is an arithmetic number, because the mean of its divisors is an integer number (51795555840).

Almost surely, 2^{1340431400444} is an apocalyptic number.

It is an amenable number.

1340431400444 is a deficient number, since it is larger than the sum of its proper divisors (1145755279876).

1340431400444 is a wasteful number, since it uses less digits than its factorization.

1340431400444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93098 (or 93096 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 1340431400444 its reverse (4440041340431), we get a palindrome (5780472740875).

The spelling of 1340431400444 in words is "one trillion, three hundred forty billion, four hundred thirty-one million, four hundred thousand, four hundred forty-four".