1340021454044 has 48 divisors (see below), whose sum is σ = 2891870788800. Its totient is φ = 529076814336.

The previous prime is 1340021454043. The next prime is 1340021454113. The reversal of 1340021454044 is 4404541200431.

It is a self number, because there is not a number n which added to its sum of digits gives 1340021454044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340021454043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3431009 + ... + 3801560.

It is an arithmetic number, because the mean of its divisors is an integer number (60247308100).

Almost surely, 2^{1340021454044} is an apocalyptic number.

1340021454044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1340021454044 is an abundant number, since it is smaller than the sum of its proper divisors (1551849334756).

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

1340021454044 is a wasteful number, since it uses less digits than its factorization.

1340021454044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7233102 (or 7233100 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 1340021454044 its reverse (4404541200431), we get a palindrome (5744562654475).

The spelling of 1340021454044 in words is "one trillion, three hundred forty billion, twenty-one million, four hundred fifty-four thousand, forty-four".