1386930340 has 24 divisors (see below), whose sum is σ = 2913414840. Its totient is φ = 554608128.

The previous prime is 1386930331. The next prime is 1386930353. The reversal of 1386930340 is 430396831.

It can be written as a sum of positive squares in 4 ways, for example, as 338854464 + 1048075876 = 18408^2 + 32374^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1386930340.

It is an unprimeable number.

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, 77346 + ... + 93574.

It is an arithmetic number, because the mean of its divisors is an integer number (121392285).

Almost surely, 2^1386930340 is an apocalyptic number.

1386930340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1386930340 is an abundant number, since it is smaller than the sum of its proper divisors (1526484500).

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

1386930340 is a wasteful number, since it uses less digits than its factorization.

1386930340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20511 (or 20509 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 1386930340 is about 37241.5136641893. The cubic root of 1386930340 is about 1115.1968898956.

The spelling of 1386930340 in words is "one billion, three hundred eighty-six million, nine hundred thirty thousand, three hundred forty".