1338598457240 has 128 divisors (see below), whose sum is σ = 3559830405120. Its totient is φ = 447475660800.

The previous prime is 1338598457213. The next prime is 1338598457249. The reversal of 1338598457240 is 427548958331.

It is a self number, because there is not a number n which added to its sum of digits gives 1338598457240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338598457249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1759256 + ... + 2402535.

It is an arithmetic number, because the mean of its divisors is an integer number (27811175040).

Almost surely, 2^{1338598457240} is an apocalyptic number.

1338598457240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1338598457240 is an abundant number, since it is smaller than the sum of its proper divisors (2221231947880).

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

1338598457240 is a wasteful number, since it uses less digits than its factorization.

1338598457240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4161873 (or 4161869 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 59.

The spelling of 1338598457240 in words is "one trillion, three hundred thirty-eight billion, five hundred ninety-eight million, four hundred fifty-seven thousand, two hundred forty".