1380039460 has 24 divisors (see below), whose sum is σ = 2904443640. Its totient is φ = 550804224.

The previous prime is 1380039433. The next prime is 1380039469. The reversal of 1380039460 is 649300831.

It can be written as a sum of positive squares in 4 ways, for example, as 317409856 + 1062629604 = 17816^2 + 32598^2 .

It is a super-2 number, since 2×1380039460² = 3809017822314183200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1380039469) 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, 66355 + ... + 84634.

It is an arithmetic number, because the mean of its divisors is an integer number (121018485).

Almost surely, 2^1380039460 is an apocalyptic number.

1380039460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1380039460 is an abundant number, since it is smaller than the sum of its proper divisors (1524404180).

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

1380039460 is a wasteful number, since it uses less digits than its factorization.

1380039460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151455 (or 151453 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 1380039460 is about 37148.8823519632. The cubic root of 1380039460 is about 1113.3468930743.

The spelling of 1380039460 in words is "one billion, three hundred eighty million, thirty-nine thousand, four hundred sixty".