1300039940 has 24 divisors (see below), whose sum is σ = 2730840000. Its totient is φ = 519871968.

The previous prime is 1300039933. The next prime is 1300039943. The reversal of 1300039940 is 499300031.

It is not an unprimeable number, because it can be changed into a prime (1300039943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93479 + ... + 106481.

It is an arithmetic number, because the mean of its divisors is an integer number (113785000).

Almost surely, 2^1300039940 is an apocalyptic number.

1300039940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1300039940 is an abundant number, since it is smaller than the sum of its proper divisors (1430800060).

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

1300039940 is a wasteful number, since it uses less digits than its factorization.

1300039940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18011 (or 18009 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 1300039940 is about 36056.0666185318. The cubic root of 1300039940 is about 1091.4040599291.

Adding to 1300039940 its reverse (499300031), we get a palindrome (1799339971).

The spelling of 1300039940 in words is "one billion, three hundred million, thirty-nine thousand, nine hundred forty".