1338037550 has 12 divisors (see below), whose sum is σ = 2488749936. Its totient is φ = 535215000.

The previous prime is 1338037517. The next prime is 1338037553. The reversal of 1338037550 is 557308331.

It is a self number, because there is not a number n which added to its sum of digits gives 1338037550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338037553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13380326 + ... + 13380425.

It is an arithmetic number, because the mean of its divisors is an integer number (207395828).

Almost surely, 2^1338037550 is an apocalyptic number.

1338037550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1338037550 is a deficient number, since it is larger than the sum of its proper divisors (1150712386).

1338037550 is a wasteful number, since it uses less digits than its factorization.

1338037550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26760763 (or 26760758 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 1338037550 is about 36579.1955898431. The cubic root of 1338037550 is about 1101.9353120725.

The spelling of 1338037550 in words is "one billion, three hundred thirty-eight million, thirty-seven thousand, five hundred fifty".