1380939 has 16 divisors (see below), whose sum is σ = 2215680. Its totient is φ = 747360.

The previous prime is 1380931. The next prime is 1380947. The reversal of 1380939 is 9390831.

It is an interprime number because it is at equal distance from previous prime (1380931) and next prime (1380947).

It is not a de Polignac number, because 1380939 - 2³ = 1380931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1380931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1332 + ... + 2129.

It is an arithmetic number, because the mean of its divisors is an integer number (138480).

2^1380939 is an apocalyptic number.

1380939 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1380939 is a deficient number, since it is larger than the sum of its proper divisors (834741).

1380939 is a wasteful number, since it uses less digits than its factorization.

1380939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3490.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 1380939 is about 1175.1336094249. The cubic root of 1380939 is about 111.3588741846.

The spelling of 1380939 in words is "one million, three hundred eighty thousand, nine hundred thirty-nine".