1338706980 has 96 divisors (see below), whose sum is σ = 4485264000. Its totient is φ = 329526144.

The previous prime is 1338706979. The next prime is 1338706981. The reversal of 1338706980 is 896078331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1338706979) and next prime (1338706981).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1338706981) 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, 88330 + ... + 102369.

It is an arithmetic number, because the mean of its divisors is an integer number (46721500).

Almost surely, 2^1338706980 is an apocalyptic number.

1338706980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1338706980 is an abundant number, since it is smaller than the sum of its proper divisors (3146557020).

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

1338706980 is a wasteful number, since it uses less digits than its factorization.

1338706980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190730 (or 190722 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1338706980 is about 36588.3448655443. The cubic root of 1338706980 is about 1102.1190502069.

The spelling of 1338706980 in words is "one billion, three hundred thirty-eight million, seven hundred six thousand, nine hundred eighty".