1338000140 has 24 divisors (see below), whose sum is σ = 2957685360. Its totient is φ = 507031488.

The previous prime is 1338000133. The next prime is 1338000149. The reversal of 1338000140 is 410008331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1338000149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1760147 + ... + 1760906.

It is an arithmetic number, because the mean of its divisors is an integer number (123236890).

Almost surely, 2^1338000140 is an apocalyptic number.

1338000140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1338000140 is an abundant number, since it is smaller than the sum of its proper divisors (1619685220).

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

1338000140 is a wasteful number, since it uses less digits than its factorization.

1338000140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521081 (or 3521079 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1338000140 is about 36578.6842300266. The cubic root of 1338000140 is about 1101.9250423596.

Adding to 1338000140 its reverse (410008331), we get a palindrome (1748008471).

The spelling of 1338000140 in words is "one billion, three hundred thirty-eight million, one hundred forty", and thus it is an aban number.