1338709620 has 24 divisors (see below), whose sum is σ = 3748387104. Its totient is φ = 356989216.

The previous prime is 1338709613. The next prime is 1338709621. The reversal of 1338709620 is 269078331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338709621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11155854 + ... + 11155973.

It is an arithmetic number, because the mean of its divisors is an integer number (156182796).

Almost surely, 2^1338709620 is an apocalyptic number.

1338709620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1338709620 is an abundant number, since it is smaller than the sum of its proper divisors (2409677484).

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

1338709620 is a wasteful number, since it uses less digits than its factorization.

1338709620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22311839 (or 22311837 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 1338709620 is about 36588.3809425889. The cubic root of 1338709620 is about 1102.1197746852.

The spelling of 1338709620 in words is "one billion, three hundred thirty-eight million, seven hundred nine thousand, six hundred twenty".